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Zone 4A — May

What to Plant in May in Zone 4A

May in Zone 4A: 2 crops to start indoors, 657 to plant or direct sow outside, and 7 entering harvest window. Last frost averages May 14. Reference city: Fargo, ND.
Updated August 12, 2026 · Frost data from NOAA 1991-2020 Climate Normals
2 Start Indoors
657 Plant Outside
7 Harvest
Frost window: Active

This is when frost can still happen in Zone 4A. The last spring frost typically lands on May 14, with a 10% chance of frost as late as May 28. Plan transplants with this window in mind.

See full Zone 4A frost outlook

Start Indoors in May

Plant Type Start Indoors Transplant Outside Harvest Window
Lemon Cucumber cucumber May 7 May 28 Jul 27 – Aug 6
National Pickling Cucumber cucumber May 7 May 28 Jul 17 – Jul 25

Plant Outside in May

Plant Type Action Target Date Harvest Window
Abe Lincoln Tomatoes tomato Transplant May 28 Aug 16 – Aug 26
Ace 55 Tomatoes tomato Transplant May 28 Aug 16 – Aug 21
Adams Elderberry berry Plant Out May 14 Perennial — see plant page
Adirondack Blue Potato root vegetable Direct Sow May 21 Aug 16
African Flake Daisy Flowers flower Direct Sow May 14 Aug 12 – Aug 22
Aji Amarillo Peppers pepper Transplant May 28 Aug 26 – Sep 25
Aji Dulce Peppers pepper Transplant May 28 Aug 26 – Sep 15
Alaska Early Pea legume Direct Sow May 21 Jul 17
Alaska Mix Nasturtium Flowers flower Direct Sow May 14 Jul 8 – Jul 18
Alexandria Alpine Strawberry berry Transplant May 21 Perennial — see plant page
Alfalfa Cover Crop cover crop Direct Sow May 7 Perennial — see plant page
All Sorts Surprise Mix Sunflowers flower Direct Sow May 21 Jul 30 – Aug 29
All Sweet Watermelon melon Direct Sow May 28 Aug 26 – Aug 31
All Year Round Lettuce lettuce Direct Sow May 5 Jul 8 – Jul 17
Amarillo Oro Melon melon Direct Sow May 28 Aug 26
Amarillo Yellow Carrots root vegetable Direct Sow May 21 Aug 4
America Spinach lettuce Direct Sow May 5 Jun 17 – Jun 29
American Purple Top Rutabaga root vegetable Direct Sow May 21 Aug 14 – Aug 29
Amish Paste Tomatoes tomato Transplant May 28 Aug 10 – Aug 21
Anaheim Peppers pepper Transplant May 28 Aug 13 – Aug 21
Ancho Grande Hot Peppers pepper Transplant May 28 Aug 11 – Aug 21
Angelica herb Transplant May 14 Aug 2 – Aug 12
Anise herb Direct Sow May 21 Aug 29 – Sep 18
Anise hyssop leaves and flowers flower Direct Sow May 14 Perennial — see plant page
Anna Russian Tomatoes tomato Transplant May 28 Aug 6
Armenian Cucumber cucumber Direct Sow May 21 Jul 20 – Jul 30
Arroyo Lupine Flowers flower Direct Sow May 14 Aug 7 – Aug 27
Ashley Cucumber cucumber Direct Sow May 21 Jul 15 – Jul 20
Astro Arugula lettuce Direct Sow May 5 May 26 – Jun 14
Atkinson Tomatoes tomato Transplant May 28 Aug 6 – Aug 16
Atlantic Giant Pumpkin squash Direct Sow May 21 Sep 8
Aunt Molly's Ground Cherry vegetable Transplant May 28 Aug 6 – Aug 26
Aunt Ruby's German Green Tomatoes tomato Transplant May 28 Aug 16
Autumn King Carrots root vegetable Direct Sow May 21 Aug 4 – Aug 9
Baby Blue Eyes Flowers flower Direct Sow May 14 Jul 13 – Aug 12
Baby Blue Hubbard Winter Squash squash Direct Sow May 21 Aug 24
Baby Cakes Blackberry berry Plant Out May 21 Perennial — see plant page
Baby's Breath Flowers flower Direct Sow May 14 Jun 28 – Jul 13
Bachelor's button edible flowers flower Direct Sow May 14 Jul 13 – Aug 2
Banana Melon melon Direct Sow May 28 Aug 26
Barletta, Pearly White Onions allium Transplant May 14 Jul 28 – Aug 2
Basil Herb Mix herb Transplant May 21 Jul 20 – Aug 9
Beauty Pink Radishes root vegetable Direct Sow May 21 Jun 16
Beauty Purple Radishes root vegetable Direct Sow May 21 Jun 15 – Jun 20
Beauty White Radishes root vegetable Direct Sow May 21 Jun 20 – Jun 30
Bee Balm flower Plant Out May 14 Perennial — see plant page
Beit Alpha Cucumbers cucumber Direct Sow May 21 Jul 10 – Jul 25
Better Boy Tomatoes tomato Transplant May 28 Aug 6 – Aug 11
Bhut Jolokia Ghost Pepper pepper Transplant May 28 Aug 26 – Sep 25
Big Beef Tomatoes tomato Transplant May 28 Aug 6
Big Boy Tomatoes tomato Transplant May 28 Aug 14
Big Jim Hatch Chile pepper Transplant May 28 Aug 6 – Aug 11
Big Max Pumpkin squash Direct Sow May 21 Sep 13 – Sep 18
Big Rainbow Tomatoes tomato Transplant May 28 Aug 21 – Aug 31
Birds Eye Hot Peppers pepper Transplant May 28 Sep 5 – Sep 15
Bitter melons vegetable Transplant May 28 Aug 11 – Aug 26
Black Beauty Eggplant vegetable Transplant May 28 Aug 11 – Aug 26
Black Beauty Zucchini squash Transplant May 25 Jul 9 – Jul 19
Black Cherry Tomatoes tomato Transplant May 28 Jul 31 – Aug 11
Black Diamond Watermelon melon Direct Sow May 28 Aug 26
Black From Tula Tomatoes tomato Transplant May 28 Aug 21
Black Oil Sunflower Microgreens microgreen Plant Out May 14 May 21 – May 26
Black Pearl Tomatoes tomato Transplant May 28 Aug 1
Black Salsify root vegetable Direct Sow May 21 Perennial — see plant page
Black Seeded Simpson Lettuce lettuce Direct Sow May 5 Jun 19 – Jun 20
Black-Eyed Pea legume Direct Sow May 21 Jul 25 – Jul 30
Black-Eyed Susan flower Plant Out May 14 Perennial — see plant page
Blazing Star Flowers flower Direct Sow May 14 Perennial — see plant page
Blonde de Paris Lettuce lettuce Direct Sow May 5 Jun 24 – Jul 4
Blondkopfchen Tomatoes tomato Transplant May 28 Aug 11 – Aug 16
Bloody Butcher Corn vegetable Direct Sow May 28 Sep 5 – Sep 15
Bloomsdale Longstanding Spinach lettuce Direct Sow May 5 Jun 19 – Jun 26
Blue Curled Scotch Kale lettuce Direct Sow May 5 Jun 29 – Jul 4
Blue Lake Bush Bean legume Direct Sow May 21 Jul 10 – Jul 18
Blue Lake Pole Bean legume Direct Sow May 21 Jul 26 – Aug 4
Bok Choy lettuce Direct Sow May 5 Jun 19 – Jul 4
Boltardy Beets root vegetable Direct Sow May 21 Jul 10 – Jul 20
Bonny Best Tomatoes tomato Transplant May 28 Aug 11 – Aug 16
Borage flower Direct Sow May 14 Jul 8 – Jul 28
Borlotti Bush Bean legume Direct Sow May 21 Jul 15 – Jul 25
Boston Pickling Cucumber cucumber Direct Sow May 21 Jul 10 – Jul 15
Bradley Tomatoes tomato Transplant May 28 Aug 11 – Aug 16
Broad Windsor Fava Bean legume Direct Sow May 21 Aug 9
Broadleaf Classic Endive lettuce Direct Sow May 5 Jun 24 – Jul 4
Broadleaf Full Heart Batavian Endive lettuce Direct Sow May 5 Jul 29 – Aug 3
Broadleaf Sorrel lettuce Direct Sow May 5 Perennial — see plant page
Broccolini brassica Transplant May 28 Jul 17 – Jul 27
Brunswick Lowbush Blueberry berry Plant Out May 14 Perennial — see plant page
Brussels Sprouts brassica Transplant May 28 Aug 21 – Sep 15
Buckwheat cover crop Direct Sow May 14 Jun 13 – Jun 28
Bull's Blood Beets root vegetable Direct Sow May 21 Jul 10 – Jul 15
Burgess Buttercup Winter Squash squash Direct Sow May 21 Aug 24
Burgundy Boston Lettuce lettuce Direct Sow May 5 Jun 24 – Jun 29
Bush Pickle Cucumbers cucumber Direct Sow May 21 Jul 5 – Jul 13
Buttercrunch Lettuce lettuce Direct Sow May 5 Jun 20 – Jun 29
Butterhead Lettuce lettuce Direct Sow May 5 Jun 24 – Jul 9
Cal Sweet Watermelon melon Direct Sow May 28 Aug 21 – Aug 26
Calendula flower Transplant May 28 Jul 17 – Jul 27
California Bluebell flower Direct Sow May 14 Jul 8 – Jul 18
California Giant Mix Zinnia Flowers flower Direct Sow May 21 Jul 20 – Jul 30
Calypso Bean legume Direct Sow May 21 Jul 30 – Aug 19
Calypso Cilantro herb Direct Sow May 14 Jul 3 – Jul 8
Calypso Tomatoes tomato Transplant May 28 Aug 11 – Aug 16
Canary Bird Zinnia Flowers flower Direct Sow May 21 Jul 20 – Jul 30
Canary Yellow Swiss Chard lettuce Direct Sow May 5 Jun 24 – Jul 4
Cardoon (Purple Artichoke Thistle) vegetable Transplant May 21 Perennial — see plant page
Caribe Tomatoes tomato Transplant May 28 Aug 11 – Aug 21
Carmello Tomatoes tomato Transplant May 28 Aug 6 – Aug 11
Carolina Cross Watermelon melon Direct Sow May 28 Sep 5
Carolina Reaper peppers pepper Transplant May 28 Aug 26 – Sep 25
Cascadia Sugar Snap Pea legume Direct Sow May 21 Jul 20
Caserta Summer Squash squash Direct Sow May 21 Jul 25
Casper Eggplant vegetable Transplant May 28 Aug 11
Catalogna Chicory lettuce Direct Sow May 5 Jun 29
Catmint herb Transplant May 14 Perennial — see plant page
Catnip Herb herb Direct Sow May 14 Perennial — see plant page
Cayenne Peppers pepper Transplant May 28 Aug 6 – Aug 21
Celebrity Tomatoes tomato Transplant May 28 Aug 6 – Aug 8
Chadwick's Cherry Tomatoes tomato Transplant May 28 Aug 6 – Aug 26
Champion Radishes root vegetable Direct Sow May 21 Jun 15 – Jun 20
Chantenay Carrots root vegetable Direct Sow May 21 Jul 30
Cherokee Trail of Tears Bean legume Direct Sow May 21 Jul 25 – Aug 19
Cherry Belle Radish root vegetable Direct Sow May 21 Jun 15
Cherry Bomb peppers pepper Transplant May 28 Aug 11 – Aug 16
Cherry Queen Zinnia Flowers flower Direct Sow May 21 Jul 20 – Jul 30
Chinese 5-Color Peppers pepper Transplant May 28 Aug 11 – Aug 21
Chinese Broccoli (Gai Lan) brassica Direct Sow May 5 Jun 4 – Jun 24
Chinese Snake Cucumber cucumber Direct Sow May 21 Aug 4
Chioggia Beet root vegetable Direct Sow May 21 Jul 15
Chives herb Plant Out May 14 Perennial — see plant page
Chocolate Bell Sweet Peppers pepper Transplant May 28 Aug 1 – Aug 16
Chocolate Cherry Sunflowers flower Direct Sow May 21 Aug 4 – Aug 19
Chocolate Cherry Tomatoes tomato Transplant May 28 Aug 6 – Aug 11
Chocolate Habanero Hot Peppers pepper Transplant May 28 Aug 21 – Sep 10
Chocolate Stripes Tomatoes tomato Transplant May 28 Aug 16
Christmas Lima Bean legume Direct Sow May 21 Aug 13 – Aug 19
Cinderella Pumpkin squash Direct Sow May 21 Sep 13
Cinnamon Basil herb Transplant May 21 Jul 25 – Aug 9
Clasping Coneflower flower Direct Sow May 21 Aug 14 – Aug 29
Classic Cumin herb Direct Sow May 21 Aug 29 – Sep 18
Classic Tomatillos vegetable Transplant May 21 Aug 9 – Aug 14
Cocozelle Summer Squash squash Direct Sow May 21 Jul 18
Common Milkweed Flowers flower Direct Sow May 7 Perennial — see plant page
Common Sage herb Transplant May 21 Perennial — see plant page
Congo Watermelon melon Direct Sow May 28 Aug 26 – Aug 31
Contender Bush Bean legume Direct Sow May 21 Jul 5 – Jul 15
Corno di Toro Pepper pepper Transplant May 28 Aug 11 – Aug 16
Cosmic Purple Carrot root vegetable Direct Sow May 21 Jul 18 – Aug 4
Cosmos flower Transplant May 28 Aug 6 – Aug 26
Cosmos Sensations Mix Flowers flower Direct Sow May 14 Jul 28 – Aug 12
Costoluto Genovese Tomatoes tomato Transplant May 28 Aug 6 – Aug 16
County Fair Cucumbers cucumber Direct Sow May 21 Jul 10 – Jul 12
Crackerjack Mix Marigolds flower Transplant May 14 Jul 13 – Jul 28
Crego Mix Aster Flowers flower Transplant May 21 Aug 9 – Aug 19
Creole Tomatoes tomato Transplant May 28 Aug 6 – Aug 14
Crimson Clover cover crop Direct Sow May 14 Jul 13 – Aug 12
Crimson Forest Bunching Onions allium Transplant May 14 Jul 13
Crisphead Lettuce lettuce Direct Sow May 5 Jul 12 – Jul 19
Crosby's Egyptian Beets root vegetable Direct Sow May 21 Jul 15 – Jul 20
Cuban Oregano herb Plant Out May 21 Perennial — see plant page
Cupid Grape Tomatoes tomato Transplant May 28 Aug 1 – Aug 6
Curly Kale lettuce Direct Sow May 5 Jun 29 – Jul 9
Curly Parsley herb Transplant May 14 Jul 23 – Aug 2
Cylindra Beets root vegetable Direct Sow May 21 Jul 20
Danvers Carrot root vegetable Direct Sow May 21 Jul 30 – Aug 9
Dark Green Romaine Lettuce lettuce Direct Sow May 5 Jul 4 – Jul 14
Dark Green Summer Squash squash Direct Sow May 21 Jul 10
Dark Opal Basil herb Transplant May 28 Jul 27 – Aug 11
Datil peppers pepper Transplant May 28 Aug 26 – Sep 15
Delica Kabocha Squash squash Transplant May 28 Aug 31 – Sep 15
Delicata Squash squash Transplant May 28 Aug 16 – Sep 5
Delicatesse Blue Kohlrabi brassica Direct Sow May 5 Jun 29 – Jul 4
Delicatesse White Kohlrabi brassica Direct Sow May 5 Jun 29 – Jul 4
Delicious Tomatoes tomato Transplant May 28 Aug 11 – Aug 16
Detroit Dark Red Beet root vegetable Direct Sow May 21 Jul 20
Devils Tongue Yellow Hot Peppers pepper Transplant May 28 Aug 26 – Sep 15
Dill herb Direct Sow May 14 Jun 23 – Jul 8
Diva Cucumbers cucumber Direct Sow May 21 Jul 18
Dolce Fresca Basil herb Transplant May 28 Jul 27 – Aug 6
Dragon Tongue Bean legume Direct Sow May 21 Jul 15 – Jul 20
Dutch Lamb's Lettuce lettuce Direct Sow May 5 Jun 14 – Jun 24
Dwarf Jewel Mix Nasturtium Flowers flower Direct Sow May 14 Jul 3 – Jul 13
Dwarf Siberian Kale lettuce Direct Sow May 5 Jun 24 – Jun 29
Early Girl Tomatoes tomato Transplant May 28 Jul 19 – Jul 29
Early White Bush Scallop Pattypan Squash squash Transplant May 28 Jul 14 – Jul 22
Early Wonder Beets root vegetable Direct Sow May 21 Jul 10
Easter Egg Radishes root vegetable Direct Sow May 21 Jun 18 – Jun 22
Echinacea flower Plant Out May 14 Perennial — see plant page
Edamame legume Direct Sow May 21 Aug 4 – Aug 24
Egg Tomatoes tomato Transplant May 28 Aug 11 – Aug 16
Eight Ball Zucchini squash Direct Sow May 21 Jul 5 – Jul 15
Emerald Giant Sweet Peppers pepper Transplant May 28 Aug 11 – Aug 21
Emerald Green Velvet Okra vegetable Direct Sow May 28 Jul 22 – Jul 25
Empress of India Nasturtium Flowers flower Direct Sow May 14 Jul 8 – Jul 18
Endive / Escarole lettuce Direct Sow May 5 Jun 19 – Jul 9
English Lavender herb Transplant May 28 Perennial — see plant page
English Lavender (companion planting) flower Plant Out May 14 Perennial — see plant page
English Thyme herb Transplant May 14 Perennial — see plant page
English White Daisy Flowers flower Transplant May 14 Perennial — see plant page
Epazote herb Direct Sow May 21 Jul 15 – Jul 25
Evening Sun Sunflowers flower Direct Sow May 21 Aug 9 – Aug 19
Everbearing Cucumber cucumber Direct Sow May 21 Jul 20
Evergreen Bunching Onions allium Transplant May 14 Jul 13 – Jul 18
Fairy Dwarf Mix Candytuft Flowers flower Direct Sow May 7 Jun 21 – Jul 1
Fava Bean legume Direct Sow May 21 Aug 4 – Aug 29
Firecracker Hot Peppers pepper Transplant May 28 Aug 16 – Sep 25
Fish Peppers pepper Transplant May 28 Aug 6 – Aug 16
Five Star Grape Tomatoes tomato Transplant May 28 Jul 29
Flat-Leaf Parsley herb Transplant May 14 Jul 23 – Aug 12
Floradade Tomatoes tomato Transplant May 28 Aug 6 – Aug 11
Florida Broadleaf Mustard lettuce Direct Sow May 5 Jun 14 – Jun 24
Florida Giant Watermelon melon Direct Sow May 28 Aug 21
Florida Market Eggplant vegetable Transplant May 28 Aug 16 – Aug 26
Fordhook Giant Swiss Chard lettuce Direct Sow May 5 Jun 19 – Jun 29
Fortex Pole Bean legume Direct Sow May 21 Jul 20 – Jul 30
Foxglove Flowers flower Direct Sow May 7 Perennial — see plant page
French Breakfast Radish root vegetable Direct Sow May 21 Jun 11
French Fingerling Potato root vegetable Direct Sow May 21 Aug 22
French Lamb's Lettuce lettuce Direct Sow May 5 Jun 14 – Jun 24
French Marigold flower Transplant May 28 Jul 17 – Jul 27
French Tarragon herb Plant Out May 14 Perennial — see plant page
Fresno Peppers pepper Transplant May 28 Aug 11 – Aug 16
Gaillardia Annual Mix Flowers flower Direct Sow May 14 Jul 23 – Aug 12
Gardener's Delight Tomatoes tomato Transplant May 28 Jul 27 – Aug 11
Garlic Chives herb Plant Out May 14 Perennial — see plant page
Genovese Basil herb Transplant May 28 Jul 27 – Aug 6
Georgia Rattlesnake Watermelon melon Direct Sow May 28 Aug 26 – Aug 31
Georgia Southern Collard Greens lettuce Direct Sow May 5 Jul 14 – Jul 29
German Chamomile herb Direct Sow May 14 Jul 13 – Jul 18
German Johnson Tomatoes tomato Transplant May 28 Aug 21
Giant Maximum Mix Snapdragon Flowers flower Transplant May 14 Aug 2 – Aug 17
Giant Red Mustard lettuce Direct Sow May 5 Jun 19
Glacier Tomatoes tomato Transplant May 28 Jul 22 – Jul 25
Globe Gilia Flowers flower Direct Sow May 14 Jul 13 – Aug 2
Glorious Gleam Nasturtium Flowers flower Direct Sow May 14 Jul 8 – Jul 23
Gochugaru Korean Peppers pepper Transplant May 28 Aug 11
Gold Rush Zucchini squash Direct Sow May 21 Jul 5 – Jul 10
Golden Bantam Sweet Corn vegetable Direct Sow May 28 Aug 16 – Aug 21
Golden Beet root vegetable Direct Sow May 21 Jul 15 – Jul 25
Golden Bush Scallop Summer Squash squash Direct Sow May 21 Jul 25
Golden Celery vegetable Transplant May 21 Aug 14 – Aug 24
Golden Detroit Beets root vegetable Direct Sow May 21 Jul 15 – Jul 20
Golden Globe Turnips root vegetable Direct Sow May 21 Jul 5 – Jul 10
Golden Hubbard Winter Squash squash Direct Sow May 21 Aug 29
Golden Marconi Sweet Peppers pepper Transplant May 28 Aug 1 – Aug 16
Golden Sunray Tomatoes tomato Transplant May 28 Aug 11 – Aug 16
Golden Wax Bush Bean legume Direct Sow May 21 Jul 10 – Jul 20
Goldrush Potato root vegetable Direct Sow May 21 Sep 9 – Sep 18
Grano Red Onions allium Transplant May 14 Sep 11
Grano White Onions allium Transplant May 14 Sep 11
Greek Basil herb Transplant May 21 Jul 25 – Aug 4
Greek Oregano herb Plant Out May 21 Perennial — see plant page
Green Arrow Pea legume Direct Sow May 21 Jul 25 – Jul 30
Green Cabbage brassica Transplant May 28 Jul 27 – Sep 5
Green Envy Tomatoes tomato Transplant May 28 Jul 27 – Aug 6
Green Fingers Persian Cucumber cucumber Direct Sow May 21 Jul 15 – Jul 20
Green Flesh Honeydew Melon melon Direct Sow May 28 Aug 21 – Sep 5
Green Globe Artichoke vegetable Transplant May 28 Perennial — see plant page
Green Grape Tomatoes tomato Transplant May 28 Aug 1 – Aug 14
Green Hubbard Winter Squash squash Direct Sow May 21 Sep 8
Green Ice Lettuce lettuce Direct Sow May 5 Jun 19
Green Marrow Summer Squash squash Direct Sow May 21 Aug 14
Green Mountain Celtuce lettuce Direct Sow May 5 Jun 24
Green Purslane vegetable Direct Sow May 21 Jun 25 – Jul 10
Green shiso leaves herb Transplant May 21 Jul 20 – Jul 30
Green Striped Cushaw Crookneck Winter Squash squash Direct Sow May 21 Sep 3
Green Wave Mustard lettuce Direct Sow May 5 Jun 19
H-19 Little Leaf Cucumbers cucumber Direct Sow May 21 Jul 17 – Jul 22
Hailstone Radishes root vegetable Direct Sow May 21 Jun 20
Hairy vetch cover crop stands cover crop Direct Sow May 14 Jul 13 – Aug 12
Hale's Best Jumbo Cantaloupe melon Transplant May 28 Aug 16 – Aug 26
Harris Model Parsnips root vegetable Direct Sow May 21 Sep 13 – Sep 18
Harvester Bush Bean legume Direct Sow May 21 Jul 10 – Jul 15
Hatch Green Chile (NM 6-4) Peppers pepper Transplant May 28 Aug 6 – Aug 16
Heart of Gold Cantaloupe Melon melon Direct Sow May 28 Aug 21 – Sep 5
Heirloom Red Kuri Squash squash Direct Sow May 21 Aug 19 – Aug 29
Henderson Bush Lima Bean legume Direct Sow May 21 Jul 21 – Jul 30
Herb Fennel herb Direct Sow May 14 Perennial — see plant page
Heritage Rainbow Blend Carrots root vegetable Direct Sow May 21 Jul 30 – Aug 4
Highbush Blueberries berry Transplant May 28 Perennial — see plant page
Hillbilly Tomatoes tomato Transplant May 28 Aug 21
Holiday Marbles Hot Peppers pepper Transplant May 28 Aug 26 – Sep 15
Homemade Pickles Cucumber cucumber Direct Sow May 21 Jul 20
Homestead Tomatoes tomato Transplant May 28 Aug 16 – Aug 21
Honey Bee Tomatoes tomato Transplant May 28 Jul 27
Honey Rock Cantaloupe Melon melon Direct Sow May 28 Aug 21 – Sep 5
Horehound Herb herb Direct Sow May 14 Perennial — see plant page
Horseradish vegetable Plant Out May 14 Perennial — see plant page
Hot Pink Swiss Chard lettuce Direct Sow May 5 Jun 24 – Jul 4
Hungarian Hot Wax Pepper pepper Transplant May 28 Aug 1 – Aug 11
Iceberg Lettuce lettuce Direct Sow May 5 Jul 12 – Jul 19
Imperial Star Artichoke vegetable Transplant May 14 Aug 12 – Aug 22
Indian Spring Mix Hollyhock Flowers flower Direct Sow May 14 Sep 11 – Sep 20 (before frost)
Indigo Rose Tomatoes tomato Transplant May 28 Aug 11 – Aug 26
Isis Candy Cherry Tomatoes tomato Transplant May 21 Jul 30 – Aug 9
Italian Large Leaf Basil herb Transplant May 21 Jul 20 – Aug 4
Italian Oregano herb Transplant May 14 Perennial — see plant page
Jack Be Little Pumpkin squash Direct Sow May 21 Aug 24
Jack O'Lantern Pumpkin squash Transplant May 28 Aug 26 – Sep 15
Jacob's Cattle beans legume Direct Sow May 21 Aug 12 – Aug 19
Jade Bush Bean legume Direct Sow May 21 Jul 15 – Jul 20
Jalapeño Peppers pepper Transplant May 28 Aug 1 – Aug 11
Japanese Eggplant vegetable Transplant May 28 Jul 17 – Aug 1
Jaune Flamme Tomatoes tomato Transplant May 28 Aug 16
Jet Star Tomatoes tomato Transplant May 28 Aug 6 – Aug 8
Jewel Black Raspberry berry Plant Out May 14 Perennial — see plant page
Jubilee Tomatoes tomato Transplant May 28 Aug 11 – Aug 16
Jubilee Watermelon melon Direct Sow May 28 Aug 26 – Aug 31
Juliet Tomatoes tomato Transplant May 28 Jul 26 – Jul 28
Kagraner Sommer Lettuce lettuce Direct Sow May 5 Jul 2
Kapoor Tulsi (Holy Basil) herb Transplant May 28 Jul 27
Kellogg's Breakfast tomatoes tomato Transplant May 21 Aug 4 – Aug 14
Kentucky Wonder Pole Bean legume Direct Sow May 21 Jul 25
King of the Garden Pole Lima Bean legume Direct Sow May 21 Aug 17 – Aug 24
King's Cure-All Evening Primrose Flowers flower Direct Sow May 7 Perennial — see plant page
Kuroda Carrots root vegetable Direct Sow May 21 Jul 30
Lacinato Kale lettuce Direct Sow May 5 Jul 4 – Jul 9
Lacy Phacelia Flowers flower Direct Sow May 14 Jun 28 – Jul 13
Lanceleaf Coreopsis Flowers flower Direct Sow May 14 Perennial — see plant page
Landreth Bush Bean legume Direct Sow May 21 Jul 10 – Jul 15
Large Leaf Sorrel lettuce Direct Sow May 5 Perennial — see plant page
Large Red Cherry Tomatoes tomato Transplant May 28 Aug 6 – Aug 16
Leaf Lettuce Mix lettuce Direct Sow May 5 Jun 19 – Jun 29
Lebanese White Bush Summer Squash squash Direct Sow May 21 Jul 10
Lemon Balm herb Plant Out May 14 Perennial — see plant page
Lemon Cucumber cucumber Transplant May 28 Jul 27 – Aug 6
Lemon Habanero Hot Peppers pepper Transplant May 28 Aug 21 – Sep 10
Lemon Mint Herb herb Direct Sow May 14 Aug 12
Lemongrass herb Transplant May 28 Perennial — see plant page
Lettuce Leaf Basil herb Transplant May 21 Jul 25 – Aug 9
Licorice Basil herb Transplant May 21 Jul 25 – Aug 9
Lima Bean legume Direct Sow May 21 Jul 20 – Aug 9
Lime Basil herb Transplant May 21 Jul 25 – Aug 4
Little Fingers Carrots root vegetable Direct Sow May 21 Jul 15
Little Gem Lettuce lettuce Direct Sow May 5 Jun 24 – Jun 30
Little Marvel Pea legume Direct Sow May 21 Jul 20 – Jul 23
Lollo Bionda Lettuce lettuce Direct Sow May 5 Jun 24 – Jul 4
Lollo Rossa Lettuce lettuce Direct Sow May 5 Jun 27 – Jun 30
Long Green Louisiana Eggplant vegetable Transplant May 28 Aug 1 – Aug 6
Long Island Cheese Winter Squash squash Direct Sow May 21 Sep 6
Long Ping Tung Eggplant vegetable Transplant May 28 Jul 22 – Jul 27
Long Purple Italian Eggplant vegetable Transplant May 28 Aug 11
Lovage Herb herb Direct Sow May 14 Perennial — see plant page
Love-in-a-Mist Flowers flower Direct Sow May 14 Jul 18 – Jul 23
Luffa gourds vegetable Transplant May 28 Sep 5 – Sep 25
Luminosa Zinnia Flowers flower Direct Sow May 21 Jul 20 – Jul 30
Lunar White Carrots root vegetable Direct Sow May 21 Jul 15 – Jul 20
Lunaria Silver Dollar Flowers flower Direct Sow May 7 Perennial — see plant page
Magenta Sunset Swiss Chard lettuce Direct Sow May 5 Jun 29 – Jul 4
Mammoth Melting Sugar Snow Pea legume Direct Sow May 21 Jul 28 – Aug 4
Mammoth Sandwich Island Salsify root vegetable Direct Sow May 21 Sep 18
Mammoth Sunflower flower Direct Sow May 14 Jul 18 – Aug 2
Manitoba Tomatoes tomato Transplant May 28 Aug 2
Marglobe Improved Tomatoes tomato Transplant May 28 Aug 6 – Aug 16
Marglobe Supreme Tomatoes tomato Transplant May 28 Aug 6 – Aug 16
Mariachi Peppers pepper Transplant May 28 Aug 2 – Aug 11
Marion Blackberry berry Plant Out May 14 Perennial — see plant page
Marion Tomatoes tomato Transplant May 28 Aug 11 – Aug 16
Marketer Cucumber cucumber Direct Sow May 21 Jul 15
Marketmore 76 Cucumber cucumber Transplant May 28 Jul 25 – Aug 4
Marvel of Four Seasons Lettuce lettuce Direct Sow May 5 Jun 19 – Jul 4
Matador Viking Spinach lettuce Direct Sow May 5 Jun 19 – Jun 22
Matt's Wild Cherry Tomatoes tomato Transplant May 21 Jul 15 – Jul 25
Maxibel Filet Bean legume Direct Sow May 21 Jul 10 – Jul 20
Maximilian Sunflowers flower Direct Sow May 14 Perennial — see plant page
McKana Giants Mix Columbine Flowers flower Direct Sow May 14 Perennial — see plant page
Mesclun Mix lettuce Direct Sow May 5 May 26 – Jun 4
Midnight Snack Tomatoes tomato Transplant May 28 Aug 1 – Aug 6
Minowase Daikon Radish root vegetable Direct Sow May 21 Jul 5 – Jul 15
Mizuna lettuce Direct Sow May 5 Jun 14 – Jun 24
Money Maker Tomatoes tomato Transplant May 28 Aug 11 – Aug 21
Monstrueux de Viroflay Spinach lettuce Direct Sow May 5 Jun 19 – Jun 24
Moon & Stars Red-Flesh Watermelon melon Direct Sow May 28 Aug 26 – Sep 5
Moon & Stars Yellow-Flesh Watermelon melon Direct Sow May 28 Aug 26 – Sep 5
Morris Heading Collard lettuce Direct Sow May 5 Jul 19 – Jul 24
Mountain Magic Tomatoes tomato Transplant May 28 Aug 8 – Aug 11
Mr. Stripey Tomatoes tomato Transplant May 28 Aug 16
Mrs. Burns Lemon Basil herb Transplant May 21 Jul 20 – Jul 30
Mucho Nacho Jalapeño Peppers pepper Transplant May 28 Aug 4 – Aug 6
Mugwort herb Direct Sow May 14 Perennial — see plant page
Muncher Cucumber cucumber Direct Sow May 21 Jul 20 – Jul 25
Mustard Greens lettuce Direct Sow May 5 Jun 9 – Jun 24
Mâche (Corn Salad) lettuce Direct Sow May 5 Jul 4 – Jul 28
Nantes Carrot root vegetable Direct Sow May 21 Jul 22 – Aug 4
Napa Cabbage brassica Direct Sow May 5 Jul 4 – Jul 14
Napoletano Basil herb Transplant May 28 Aug 11
Nasturtium flower Direct Sow May 14 Jul 3 – Jul 18
National Pickling Cucumber cucumber Transplant May 28 Jul 17 – Jul 25
New England Aster Flowers flower Direct Sow May 7 Perennial — see plant page
New Sunn Hemp Cover Crop cover crop Direct Sow May 28 Jul 27 – Aug 26
New Zealand Spinach lettuce Direct Sow May 5 Jun 24 – Jul 4
Noble Giant Spinach lettuce Direct Sow May 5 Jun 20 – Jun 24
Nodding Catchfly Flowers flower Direct Sow May 14 Jul 13 – Aug 12
NuMex Twilight Hot Peppers pepper Transplant May 28 Aug 26 – Sep 25
Nutri-Red Carrots root vegetable Direct Sow May 21 Jul 30
Old Fashion Mustard lettuce Direct Sow May 5 Jun 19 – Jun 24
Orange Flesh Honeydew Melon melon Direct Sow May 28 Aug 21 – Sep 5
Orange Habanero Hot Peppers pepper Transplant May 28 Aug 21 – Sep 10
Orange Horizon Sweet Peppers pepper Transplant May 28 Aug 11 – Aug 16
Orange King Zinnia Flowers flower Direct Sow May 21 Jul 20 – Jul 30
Orange Oxheart Tomatoes tomato Transplant May 28 Aug 11 – Aug 21
Orange Sulphur Cosmos Flowers flower Direct Sow May 14 Jul 8 – Jul 23
Orange Swiss Chard lettuce Direct Sow May 5 Jun 19 – Jun 29
Oregon Giant Snow Pea legume Direct Sow May 21 Jul 20
Oregon Spring Tomatoes tomato Transplant May 28 Jul 25 – Aug 6
Oregon Sugar Pod Snow Pea legume Direct Sow May 21 Jul 20 – Jul 28
Orion Florence Fennel vegetable Transplant May 21 Aug 9 – Aug 19
Ox-Eye Daisy Flowers flower Transplant May 14 Perennial — see plant page
Pacific Giant Pumpkin squash Direct Sow May 21 Sep 13 – Sep 23
Painted Mountain Flour Corn vegetable Direct Sow May 14 Aug 7
Pandora Striped Eggplant vegetable Transplant May 28 Aug 11 – Aug 16
Par-Cel Cutting Celery vegetable Plant Out May 14 Aug 2 – Aug 7
Paris Market Carrots root vegetable Direct Sow May 21 Jul 25
Paris Yellow Pumpkin squash Direct Sow May 21 Aug 29
Parsnip root vegetable Direct Sow May 21 Aug 29 – Sep 20 (before frost)
Pasilla de Oaxaca Hot Peppers pepper Transplant May 28 Aug 11 – Aug 21
Patio Princess Tomatoes tomato Transplant May 28 Aug 1 – Aug 6
Paul Robeson tomatoes tomato Transplant May 21 Jul 30 – Aug 14
Peach Melba Nasturtium Flowers flower Direct Sow May 14 Jul 3 – Jul 13
Peppermint herb Plant Out May 14 Perennial — see plant page
Pepperoncini Pepper pepper Transplant May 28 Aug 1 – Aug 11
Pesto Perpetuo Basil herb Transplant May 28 Jul 27 – Aug 26
Petch Siam Thai Eggplant vegetable Plant Out May 14 Jul 15
Phacelia cover crop and bee forage cover crop Direct Sow May 14 Jun 28 – Jul 13
Pimento Sweet Peppers pepper Transplant May 28 Aug 21 – Aug 26
Pineapple Tomatillos vegetable Transplant May 21 Jul 30 – Aug 9
Pineapple Tomatoes tomato Transplant May 28 Aug 11 – Aug 21
Pink Banana Jumbo Winter Squash squash Direct Sow May 21 Aug 29 – Sep 8
Pink Delicious Tomatoes tomato Transplant May 28 Aug 16 – Aug 20
Pink Oxheart Tomatoes tomato Transplant May 28 Aug 16 – Aug 26
Pinkeye Purple Hull Cowpea legume Direct Sow May 21 Jul 20 – Jul 30
Pistou Basil herb Transplant May 28 Jul 27
Pixie Delight Lupine Flowers flower Direct Sow May 14 Aug 12 – Sep 1
Plains Coreopsis flower Direct Sow May 14 Jul 13 – Jul 23
Planters Jumbo Cantaloupe Melon melon Direct Sow May 28 Aug 21
Poblano Peppers pepper Transplant May 28 Aug 1
Polar Bear Zinnia Flowers flower Direct Sow May 21 Jul 20 – Jul 30
Ponderosa Red Beefsteak Tomatoes tomato Transplant May 28 Aug 16 – Aug 26
Poona Kheera Cucumbers cucumber Direct Sow May 21 Jul 15 – Jul 25
Popcorn vegetable Direct Sow May 14 Aug 7 – Sep 11
Powderpuff Aster Flowers flower Transplant May 21 Aug 4 – Aug 14
Premier Kale lettuce Direct Sow May 5 Jun 24 – Jul 4
Pretty Purple Hot Peppers pepper Transplant May 28 Aug 26 – Sep 25
Prizewinner Runner Pole Bean legume Direct Sow May 21 Aug 4 – Aug 11
Progress No. 9 Shelling Pea legume Direct Sow May 21 Jul 18 – Jul 22
Provider Bush Bean legume Direct Sow May 21 Jul 10 – Jul 15
Purple Basil herb Transplant May 28 Aug 6 – Aug 21
Purple Beauty Sweet Peppers pepper Transplant May 28 Aug 6 – Aug 11
Purple Carrots root vegetable Direct Sow May 21 Jul 30 – Aug 4
Purple Haze Carrots root vegetable Direct Sow May 21 Aug 2
Purple Plum Radishes root vegetable Direct Sow May 21 Jun 18 – Jun 20
Purple Tiger Hot Peppers pepper Transplant May 28 Aug 26 – Sep 5
Purple Tomatillos vegetable Transplant May 21 Aug 4 – Aug 14
Purple Top White Globe Turnip root vegetable Direct Sow May 21 Jul 10
Pápalo leaves herb Direct Sow May 14 Jul 23 – Aug 2
Queen Anne's Lace Flowers flower Direct Sow May 14 Jul 18 – Jul 28
Queensland Blue Winter Squash squash Direct Sow May 21 Aug 29 – Sep 18
Radicchio lettuce Direct Sow May 5 Jul 4 – Jul 29
Rainbow Corn vegetable Direct Sow May 21 Sep 3 – Sep 13
Rainbow Mix Swiss Chard lettuce Direct Sow May 5 Jun 24 – Jul 4
Rambo Radish Microgreens microgreen Plant Out May 14 May 24 – May 29
Rapini Broccoli Raab brassica Direct Sow May 5 Jul 9
Rattlesnake Pole Bean legume Direct Sow May 21 Jul 20 – Jul 30
Red Burgundy Okra vegetable Direct Sow May 28 Jul 22 – Jul 27
Red Burgundy Onions allium Transplant May 14 Sep 1 – Sep 11
Red Cabbage brassica Transplant May 28 Jul 27 – Sep 5
Red Caribbean Habanero Hot Peppers pepper Transplant May 28 Aug 21 – Sep 10
Red Cayenne Hot Peppers pepper Transplant May 28 Aug 11 – Aug 21
Red Cherry Hot Peppers pepper Transplant May 28 Aug 11 – Aug 16
Red Currant Tomato tomato Plant Out May 14 Jul 23 – Aug 2
Red Garnet Amaranth vegetable Direct Sow May 21 Jul 15 – Jul 20
Red Leaf Lettuce lettuce Direct Sow May 5 Jun 19 – Jun 29
Red Mushroom Hot Peppers pepper Transplant May 28 Aug 11 – Aug 21
Red Orach lettuce Direct Sow May 5 Jun 19
Red Pear Tomatoes tomato Transplant May 28 Aug 1 – Aug 11
Red Pontiac Potato root vegetable Direct Sow May 21 Aug 19 – Sep 8
Red Prairie Mexican Hat Flowers flower Direct Sow May 21 Perennial — see plant page
Red Robin Tomatoes tomato Transplant May 28 Jul 22
Red Romaine Lettuce lettuce Direct Sow May 5 Jul 4 – Jul 14
Red Rubin Basil herb Transplant May 28 Aug 8
Red Russian Kale lettuce Direct Sow May 5 Jun 14 – Jun 24
Red Scotch Bonnet Pepper pepper Transplant May 28 Aug 31 – Sep 25
Red Vein Sorrel lettuce Direct Sow May 5 Perennial — see plant page
Red Velvet Leaf Basil herb Transplant May 21 Jul 25 – Aug 9
Red-Stem Malabar Spinach lettuce Direct Sow May 5 Jun 29 – Jul 14
Rhubarb vegetable Plant Out May 14 Perennial — see plant page
Rio Grande Tomatoes tomato Transplant May 28 Aug 11 – Aug 16
Roma II Bush Bean legume Direct Sow May 21 Jul 13 – Jul 19
Roma VF Tomatoes tomato Transplant May 28 Aug 11 – Aug 16
Romaine Lettuce lettuce Direct Sow May 5 Jul 9 – Jul 19
Roman Chamomile herb Transplant May 14 Perennial — see plant page
Romanesco brassica Transplant May 28 Aug 11 – Sep 5
Romano Pole Bean legume Direct Sow May 21 Jul 20 – Jul 28
Rosemary herb Transplant May 28 Perennial — see plant page
Round de Nice Zucchini Summer Squash squash Direct Sow May 21 Jul 12
Round Mauve Eggplant vegetable Transplant May 28 Aug 16 – Aug 26
Royal Burgundy Bush Bean legume Direct Sow May 21 Jul 15
Royal Carpet Alyssum Flowers flower Direct Sow May 7 Jun 21 – Jul 6
Royalty Purple Raspberry berry Plant Out May 14 Perennial — see plant page
Ruby Red Swiss Chard lettuce Direct Sow May 5 Jun 29 – Jul 4
Rue herb Transplant May 14 Perennial — see plant page
Russell Mix Lupine Flowers flower Direct Sow May 14 Perennial — see plant page
Russian Tarragon herb Direct Sow May 14 Perennial — see plant page
Rutgers Tomato tomato Transplant May 28 Aug 6 – Aug 16
Sakura Tomatoes tomato Transplant May 28 Jul 22 – Jul 27
Salad Bowl Green Lettuce lettuce Direct Sow May 5 Jun 23 – Jun 24
Salad Burnet herb Direct Sow May 7 Perennial — see plant page
Salad Bush Cucumbers cucumber Direct Sow May 21 Jul 17 – Jul 18
Santa Fe Grande Hot Peppers pepper Transplant May 28 Aug 11 – Aug 16
Scarlet Runner Bean legume Direct Sow May 21 Perennial — see plant page
Scarlet Sage Flowers flower Transplant May 21 Perennial — see plant page
Serrano Peppers pepper Transplant May 28 Aug 6 – Aug 16
Shasta Daisy Flowers flower Transplant May 14 Perennial — see plant page
Shelling Pea legume Direct Sow May 21 Jul 15 – Jul 30
Showy Pink Ladies Evening Primrose Flowers flower Direct Sow May 14 Perennial — see plant page
Shungiku (Edible Chrysanthemum) lettuce Direct Sow May 5 Jun 14 – Jun 29
Signet marigold edible flowers flower Direct Sow May 14 Jul 13 – Jul 18
Silver Queen Sweet Corn vegetable Direct Sow May 14 Aug 12 – Aug 14
Single Mix China Aster Flowers flower Transplant May 21 Jul 30 – Aug 9
Slenderette Bush Bean legume Direct Sow May 21 Jul 13 – Jul 17
Slow-Bolt (Slo-Bolt) Cilantro/Coriander herb Direct Sow May 14 Jun 11 – Jun 23
Smooth Blue Aster Flowers flower Direct Sow May 7 Perennial — see plant page
Snow Crown Cauliflower brassica Transplant May 28 Jul 17 – Jul 27
Snow Pea legume Direct Sow May 21 Jul 12 – Jul 30
Snow White Carrots root vegetable Direct Sow May 21 Jul 30 – Aug 4
Soapwort flower Transplant May 21 Perennial — see plant page
Solar Yellow Carrots root vegetable Direct Sow May 21 Jul 30 – Aug 4
Southport Red Globe Onions allium Transplant May 14 Sep 11
Southport White Globe Onions allium Transplant May 14 Sep 11
Spacemaster Bush Cucumber cucumber Direct Sow May 21 Jul 20 – Jul 25
Spaghetti Squash squash Transplant May 28 Aug 24 – Sep 5
Spanish Sweet White Onions allium Transplant May 14 Sep 1 – Sep 11
Sparkler Radishes root vegetable Direct Sow May 21 Jun 15 – Jun 20
Sparky Mix Marigolds flower Transplant May 14 Jul 8 – Jul 23
Spearmint herb Plant Out May 14 Perennial — see plant page
Speckled Pea Shoot Microgreens microgreen Plant Out May 14 May 22 – May 28
Spicy Globe Basil herb Transplant May 28 Aug 6
St. Valery Carrots root vegetable Direct Sow May 21 Jul 30
Stevia herb Transplant May 28 Perennial — see plant page
Straight Eight Cucumber cucumber Direct Sow May 21 Jul 20 – Jul 25
Stupice Tomatoes tomato Transplant May 28 Jul 22 – Aug 6
Sugar Ann Snap Pea legume Direct Sow May 21 Jul 15
Sugar Baby Watermelon melon Transplant May 28 Aug 11 – Aug 16
Sugar Pie Pumpkin squash Transplant May 28 Aug 26 – Sep 15
Sugar Snap Pea legume Direct Sow May 21 Jul 15 – Jul 30
Summer Bibb Lettuce lettuce Direct Sow May 5 Jun 29 – Jul 4
Summer Carnival Mix Hollyhock Flowers flower Direct Sow May 14 Sep 11 – Sep 20 (before frost)
Summer Max Mix Cover Crop cover crop Direct Sow May 28 Jul 12 – Jul 27
Summer Savory herb Direct Sow May 21 Jul 15 – Jul 25
Sun Gold Sunflowers flower Direct Sow May 21 Aug 9 – Aug 24
Sun Gold Tomatoes tomato Transplant May 28 Jul 24 – Aug 1
Sunbright Yellow Sweet Peppers pepper Transplant May 28 Aug 11 – Aug 16
SunChocola Tomatoes tomato Transplant May 28 Jul 27 – Aug 6
Sungella Tomatoes tomato Transplant May 28 Jul 27 – Aug 6
Sunray Tomatoes tomato Transplant May 28 Aug 11 – Aug 16
Sunshine Kabocha Squash squash Direct Sow May 21 Aug 24 – Aug 29
Sunspot Sunflowers flower Direct Sow May 21 Jul 15 – Jul 30
Suyo Long Cucumbers cucumber Direct Sow May 21 Jul 20 – Jul 25
Sweet 100 Tomatoes tomato Transplant May 28 Jul 27 – Aug 1
Sweet Alyssum flower Transplant May 28 Jul 7 – Jul 22
Sweet Marjoram herb Transplant May 21 Aug 4 – Aug 19
Sweet Million Tomatoes tomato Transplant May 28 Jul 27 – Aug 1
Sweet Success Cucumbers cucumber Direct Sow May 21 Jul 14 – Jul 18
Sweet Treats Tomatoes tomato Transplant May 28 Aug 1 – Aug 11
Sweet Woodruff herb Transplant May 14 Perennial — see plant page
Swiss Chard lettuce Direct Sow May 5 Jun 24 – Jul 4
Tabasco Hot Peppers pepper Transplant May 28 Aug 16 – Aug 26
Table Queen Acorn Squash squash Transplant May 28 Aug 16 – Sep 5
Tall Trailing Mix Nasturtium Flowers flower Direct Sow May 14 Jul 8 – Jul 23
Tall Utah 52-70 Celery vegetable Transplant May 28 Sep 5 – Sep 20 (before frost)
Tango Lettuce lettuce Direct Sow May 5 Jun 20
Tansy herb Transplant May 14 Perennial — see plant page
Tasty Jade Cucumbers cucumber Direct Sow May 21 Jul 14
Tatsoi lettuce Direct Sow May 5 May 30 – Jun 19
Tavera Filet Bean legume Direct Sow May 21 Jul 14
Taylor Dwarf Bush Bean legume Direct Sow May 21 Jul 25 – Jul 28
Tendercrisp Celery vegetable Transplant May 21 Aug 19 – Sep 3
Tendergreen Burpless Cucumber cucumber Direct Sow May 21 Jul 25
Tendergreen Bush Bean legume Direct Sow May 21 Jul 10 – Jul 15
Tendergreen Mustard lettuce Direct Sow May 5 Jun 14 – Jun 24
Tendersweet Carrots root vegetable Direct Sow May 21 Jul 30
Tendersweet Orange Watermelon melon Direct Sow May 28 Aug 26 – Aug 31
Texas Bluebonnet Lupine Flowers flower Direct Sow May 14 Jul 28 – Aug 17
Thai Basil herb Transplant May 28 Jul 27 – Aug 1
Thai Hot Peppers pepper Transplant May 28 Aug 11 – Aug 21
Thessaloniki Tomatoes tomato Transplant May 28 Jul 28 – Aug 8
Thorogreen Bush Lima Bean legume Direct Sow May 21 Jul 25 – Aug 4
Tiger Eye Bean legume Direct Sow May 21 Aug 9 – Aug 19
Tigerella Tomatoes tomato Transplant May 28 Jul 22 – Aug 6
Tiny Tim Tomatoes tomato Transplant May 28 Jul 12 – Jul 22
Tom Thumb Lettuce lettuce Direct Sow May 5 Jun 24 – Jul 14
Tom Watson Watermelon melon Direct Sow May 28 Aug 21
Tomatillo vegetable Transplant May 28 Jul 27 – Aug 21
Tongue of Fire Bean legume Direct Sow May 21 Jul 20 – Aug 24
Top Crop Bush Bean legume Direct Sow May 21 Jul 10 – Jul 15
Tri Color Amaranth (Joseph's Coat) vegetable Direct Sow May 21 Jun 20 – Jul 5
Tri-X 313 Seedless Watermelon melon Transplant May 28 Aug 1 – Aug 11
Trinidad Moruga Scorpion peppers pepper Transplant May 28 Aug 16 – Sep 25
Triple Crown Blackberry berry Plant Out May 14 Perennial — see plant page
Tropical Milkweed Flowers flower Transplant May 21 Perennial — see plant page
Trucker's Favorite Corn vegetable Direct Sow May 21 Aug 4 – Aug 14
True Watercress vegetable Direct Sow May 14 Perennial — see plant page
Très Fine Maraîchère Frisée lettuce Direct Sow May 5 Jul 4
Tumbling Tom Red Tomatoes tomato Transplant May 28 Aug 1 – Aug 6
Turkish Orange Eggplant vegetable Transplant May 28 Aug 21 – Aug 26
Tuscany Black Kale lettuce Direct Sow May 5 Jul 4 – Jul 19
Upland Cress vegetable Direct Sow May 14 Perennial — see plant page
Vates Collard lettuce Direct Sow May 5 Jul 4 – Jul 19
Vates Kale lettuce Direct Sow May 5 Jun 24 – Jun 29
Velvet Queen Sunflowers flower Direct Sow May 21 Aug 4 – Aug 19
Verde Tomatillos vegetable Transplant May 21 Aug 4 – Aug 14
Vermont Cranberry Bean legume Direct Sow May 21 Jul 25 – Aug 24
Verona Red Chicory lettuce Direct Sow May 5 Jul 29 – Aug 5
Vienna Purple Kohlrabi brassica Direct Sow May 5 Jun 29 – Jul 9
Vienna White Kohlrabi brassica Direct Sow May 5 Jun 29
Vietnamese Coriander herb Plant Out May 21 Perennial — see plant page
VR Moscow Tomatoes tomato Transplant May 28 Aug 16 – Aug 26
Waltham 29 Broccoli brassica Transplant May 28 Aug 11 – Aug 26
Waltham Butternut Squash squash Transplant May 28 Sep 5 – Sep 25
Wando Pea legume Direct Sow May 21 Jul 23 – Jul 28
Watermelon Radishes root vegetable Direct Sow May 21 Jul 10 – Jul 25
Wautoma Cucumbers cucumber Direct Sow May 21 Jul 20
Wee Be Little Pumpkin squash Direct Sow May 21 Aug 14
West Indian Burr Gherkin Cucumber cucumber Direct Sow May 21 Jul 15 – Jul 25
Whirlybird Nasturtium Flowers flower Direct Sow May 14 Jul 3 – Jul 13
White Boston Lettuce lettuce Direct Sow May 5 Jun 14 – Jun 24
White Cherry Tomatoes tomato Transplant May 28 Jul 26 – Aug 6
White Cloud Sweet Peppers pepper Transplant May 28 Aug 6 – Aug 11
White clover living mulch cover crop Direct Sow May 14 Perennial — see plant page
White Cushaw Crookneck Winter Squash squash Direct Sow May 21 Aug 29
White Detroit Beets root vegetable Direct Sow May 21 Jul 15 – Jul 20
White Emergo Runner Pole Bean legume Direct Sow May 21 Aug 4 – Aug 9
White Icicle Radishes root vegetable Direct Sow May 21 Jun 20
White Lisbon Bunching Onions allium Transplant May 14 Jul 13
White Marrow Summer Squash squash Direct Sow May 21 Aug 14
White Wonder Cucumber cucumber Direct Sow May 21 Jul 15 – Jul 20
Winner Kohlrabi brassica Direct Sow May 5 Jun 19 – Jun 24
Winter Density Lettuce lettuce Direct Sow May 5 Jun 28 – Jul 4
Winter Giant Spinach lettuce Direct Sow May 5 Jun 19 – Jun 24
Winter rye cover crop stands cover crop Direct Sow May 14 Nov 10 – Dec 20
Winter Savory herb Plant Out May 21 Perennial — see plant page
Wisconsin SMR 58 Cucumbers cucumber Direct Sow May 21 Jul 15 – Jul 18
Witloof White Chicory lettuce Direct Sow May 5 Aug 23 – Sep 12
Wormwood herb Transplant May 14 Perennial — see plant page
Yard Long Bean legume Direct Sow May 21 Jul 20 – Aug 19
Yarrow flower Plant Out May 14 Perennial — see plant page
Yellow Beefsteak Tomatoes tomato Transplant May 28 Aug 11 – Aug 21
Yellow Crookneck Squash squash Transplant May 28 Jul 17 – Jul 27
Yellow Jalapeno (Caloro) Hot Peppers pepper Transplant May 28 Aug 11 – Aug 21
Yellow Mushroom Hot Peppers pepper Transplant May 28 Aug 11 – Aug 21
Yellow Oxheart Tomatoes tomato Transplant May 28 Aug 15
Yellow Pear Tomatoes tomato Transplant May 28 Aug 6 – Aug 16
Yellow Scotch Bonnet Hot Peppers pepper Transplant May 28 Aug 26 – Sep 25
Yellow Sulphur Cosmos Flowers flower Direct Sow May 14 Jul 8 – Jul 23
Yolo Wonder Sweet Peppers pepper Transplant May 28 Aug 6 – Aug 16
Yukon Gold Potato root vegetable Direct Sow May 21 Jul 30 – Aug 19
Zinnia flower Transplant May 28 Jul 27 – Aug 26

Harvest in May

Plant Type Planted / Sown Harvest Window
Chervil herb Apr 23 May 28 – Jun 7
Astro Arugula lettuce May 5 May 26 – Jun 14
Black Oil Sunflower Microgreens microgreen May 14 May 21 – May 26
Mesclun Mix lettuce May 5 May 26 – Jun 4
Rambo Radish Microgreens microgreen May 14 May 24 – May 29
Speckled Pea Shoot Microgreens microgreen May 14 May 22 – May 28
Tatsoi lettuce May 5 May 30 – Jun 19

Key Tasks for May in Zone 4A

  1. 1 Start 2 varieties indoors this month under grow lights or in a sunny south-facing window. Use a seed-starting mix and bottom heat (70–75°F) for best germination rates.
  2. 2 Harden off transplants before moving outdoors — set them outside in a sheltered spot for increasing hours over 7–10 days before planting in the ground.
  3. 3 Direct sow seeds at the recommended depth and spacing. Keep the seedbed consistently moist until germination is complete.
  4. 4 Check soil moisture before watering — stick a finger 2 inches into the soil. Water only when the soil is dry at that depth. Consistent moisture is more important than frequency.
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