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Zone 5A — May

What to Plant in May in Zone 5A

May in Zone 5A: 0 crops to start indoors, 598 to plant or direct sow outside, and 57 entering harvest window. Last frost averages May 7. Reference city: Des Moines, IA.
Updated May 13, 2026 · Frost data from NOAA 1991-2020 Climate Normals
0 Start Indoors
598 Plant Outside
57 Harvest
Frost window: Active

This is when frost can still happen in Zone 5A. The last spring frost typically lands on May 7, with a 10% chance of frost as late as May 21. Plan transplants with this window in mind.

See full Zone 5A frost outlook

Start Indoors in May

Nothing to start seeds indoors in May for Zone 5A.
Next window: January — 1 variety, including Green Onion.

Plant Outside in May

Plant Type Action Target Date Harvest Window
Abe Lincoln Tomatoes tomato Transplant May 21 Aug 9 – Aug 19
Ace 55 Tomatoes tomato Transplant May 21 Aug 9 – Aug 14
Adams Elderberry berry Plant Out May 7 Perennial — see plant page
Adirondack Blue Potato root vegetable Direct Sow May 14 Aug 9
African Flake Daisy Flowers flower Direct Sow May 7 Aug 5 – Aug 15
Aji Amarillo Peppers pepper Transplant May 21 Aug 19 – Sep 18
Aji Dulce Peppers pepper Transplant May 21 Aug 19 – Sep 8
Alaska Early Pea legume Direct Sow May 14 Jul 10
Alaska Mix Nasturtium Flowers flower Direct Sow May 7 Jul 1 – Jul 11
Alexandria Alpine Strawberry berry Transplant May 14 Perennial — see plant page
All Sorts Surprise Mix Sunflowers flower Direct Sow May 14 Jul 23 – Aug 22
All Sweet Watermelon melon Direct Sow May 21 Aug 19 – Aug 24
Amarillo Oro Melon melon Direct Sow May 21 Aug 19
Amarillo Yellow Carrots root vegetable Direct Sow May 14 Jul 28
American Purple Top Rutabaga root vegetable Direct Sow May 14 Aug 7 – Aug 22
Amish Paste Tomatoes tomato Transplant May 21 Aug 3 – Aug 14
Anaheim Peppers pepper Transplant May 21 Aug 6 – Aug 14
Ancho Grande Hot Peppers pepper Transplant May 21 Aug 4 – Aug 14
Angelica herb Transplant May 7 Jul 26 – Aug 5
Anise herb Direct Sow May 14 Aug 22 – Sep 11
Anise hyssop leaves and flowers flower Direct Sow May 7 Perennial — see plant page
Anna Russian Tomatoes tomato Transplant May 21 Jul 30
Armenian Cucumber cucumber Direct Sow May 14 Jul 13 – Jul 23
Arroyo Lupine Flowers flower Direct Sow May 7 Jul 31 – Aug 20
Ashley Cucumber cucumber Direct Sow May 14 Jul 8 – Jul 13
Atkinson Tomatoes tomato Transplant May 21 Jul 30 – Aug 9
Atlantic Giant Pumpkin squash Direct Sow May 14 Sep 1
Aunt Molly's Ground Cherry vegetable Transplant May 21 Jul 30 – Aug 19
Aunt Ruby's German Green Tomatoes tomato Transplant May 21 Aug 9
Autumn King Carrots root vegetable Direct Sow May 14 Jul 28 – Aug 2
Baby Blue Eyes Flowers flower Direct Sow May 7 Jul 6 – Aug 5
Baby Blue Hubbard Winter Squash squash Direct Sow May 14 Aug 17
Baby Cakes Blackberry berry Plant Out May 14 Perennial — see plant page
Baby's Breath Flowers flower Direct Sow May 7 Jun 21 – Jul 6
Bachelor's button edible flowers flower Direct Sow May 7 Jul 6 – Jul 26
Banana Melon melon Direct Sow May 21 Aug 19
Banana Peppers pepper Transplant May 28 Aug 8
Barletta, Pearly White Onions allium Transplant May 7 Jul 21 – Jul 26
Basil Herb Mix herb Transplant May 14 Jul 13 – Aug 2
Bay Laurel herb Plant Out May 14 Perennial — see plant page
Beauregard Sweet Potato root vegetable Direct Sow May 14 Aug 12 – Aug 27
Beauty Pink Radishes root vegetable Direct Sow May 14 Jun 9
Beauty Purple Radishes root vegetable Direct Sow May 14 Jun 8 – Jun 13
Beauty White Radishes root vegetable Direct Sow May 14 Jun 13 – Jun 23
Bee Balm flower Plant Out May 7 Perennial — see plant page
Beefsteak Tomatoes tomato Transplant May 21 Aug 9 – Aug 14
Beit Alpha Cucumbers cucumber Direct Sow May 14 Jul 3 – Jul 18
Better Boy Tomatoes tomato Transplant May 21 Jul 30 – Aug 4
Bhut Jolokia Ghost Pepper pepper Transplant May 21 Aug 19 – Sep 18
Big Beef Tomatoes tomato Transplant May 21 Jul 30
Big Bertha Peppers pepper Transplant May 28 Aug 6 – Aug 9
Big Boy Tomatoes tomato Transplant May 21 Aug 7
Big Jim Hatch Chile pepper Transplant May 21 Jul 30 – Aug 4
Big Max Pumpkin squash Direct Sow May 14 Sep 6 – Sep 11
Big Rainbow Tomatoes tomato Transplant May 21 Aug 14 – Aug 24
Birds Eye Hot Peppers pepper Transplant May 21 Aug 29 – Sep 8
Bitter melons vegetable Transplant May 21 Aug 4 – Aug 19
Black Beauty Eggplant vegetable Transplant May 21 Aug 4 – Aug 19
Black Beauty Zucchini squash Transplant May 18 Jul 2 – Jul 12
Black Cherry Tomatoes tomato Transplant May 21 Jul 24 – Aug 4
Black Diamond Watermelon melon Direct Sow May 21 Aug 19
Black From Tula Tomatoes tomato Transplant May 21 Aug 14
Black Krim Tomatoes tomato Transplant May 21 Aug 4 – Aug 9
Black Oil Sunflower Microgreens microgreen Plant Out May 7 May 14 – May 19
Black Pearl Tomatoes tomato Transplant May 21 Jul 25
Black Salsify root vegetable Direct Sow May 14 Perennial — see plant page
Black-Eyed Pea legume Direct Sow May 14 Jul 18 – Jul 23
Black-Eyed Susan flower Plant Out May 7 Perennial — see plant page
Blazing Star Flowers flower Direct Sow May 7 Perennial — see plant page
Blondkopfchen Tomatoes tomato Transplant May 21 Aug 4 – Aug 9
Bloody Butcher Corn vegetable Direct Sow May 21 Aug 29 – Sep 8
Blue Lake Bush Bean legume Direct Sow May 14 Jul 3 – Jul 11
Blue Lake Pole Bean legume Direct Sow May 14 Jul 19 – Jul 28
Boltardy Beets root vegetable Direct Sow May 14 Jul 3 – Jul 13
Bonny Best Tomatoes tomato Transplant May 21 Aug 4 – Aug 9
Borage flower Direct Sow May 7 Jul 1 – Jul 21
Borlotti Bush Bean legume Direct Sow May 14 Jul 8 – Jul 18
Boston Pickling Cucumber cucumber Direct Sow May 14 Jul 3 – Jul 8
Bradley Tomatoes tomato Transplant May 21 Aug 4 – Aug 9
Brandywine Tomatoes tomato Transplant May 21 Aug 9 – Aug 19
Brilliant Celeriac root vegetable Transplant May 7 Aug 25 – Sep 4
Broad Windsor Fava Bean legume Direct Sow May 14 Aug 2
Broccolini brassica Transplant May 21 Jul 10 – Jul 20
Brunswick Lowbush Blueberry berry Plant Out May 7 Perennial — see plant page
Brussels Sprouts brassica Transplant May 21 Aug 14 – Sep 8
Buckwheat cover crop Direct Sow May 7 Jun 6 – Jun 21
Bull's Blood Beets root vegetable Direct Sow May 14 Jul 3 – Jul 8
Burgess Buttercup Winter Squash squash Direct Sow May 14 Aug 17
Bush Pickle Cucumbers cucumber Direct Sow May 14 Jun 28 – Jul 6
Cal Sweet Watermelon melon Direct Sow May 21 Aug 14 – Aug 19
Calendula flower Transplant May 21 Jul 10 – Jul 20
California Bluebell flower Direct Sow May 7 Jul 1 – Jul 11
California Giant Mix Zinnia Flowers flower Direct Sow May 14 Jul 13 – Jul 23
California Wonder Peppers pepper Transplant May 28 Aug 8 – Aug 11
Calypso Bean legume Direct Sow May 14 Jul 23 – Aug 12
Calypso Cilantro herb Direct Sow May 7 Jun 26 – Jul 1
Calypso Tomatoes tomato Transplant May 21 Aug 4 – Aug 9
Canary Bird Zinnia Flowers flower Direct Sow May 14 Jul 13 – Jul 23
Cardoon (Purple Artichoke Thistle) vegetable Transplant May 14 Perennial — see plant page
Caribe Tomatoes tomato Transplant May 21 Aug 4 – Aug 14
Carmello Tomatoes tomato Transplant May 21 Jul 30 – Aug 4
Carmen Peppers pepper Transplant May 28 Jul 27 – Aug 16
Carolina Cross Watermelon melon Direct Sow May 21 Aug 29
Carolina Reaper peppers pepper Transplant May 21 Aug 19 – Sep 18
Cascadia Sugar Snap Pea legume Direct Sow May 14 Jul 13
Caserta Summer Squash squash Direct Sow May 14 Jul 18
Casper Eggplant vegetable Transplant May 21 Aug 4
Catmint herb Transplant May 7 Perennial — see plant page
Catnip Herb herb Direct Sow May 7 Perennial — see plant page
Cayenne Peppers pepper Transplant May 21 Jul 30 – Aug 14
Celebrity Tomatoes tomato Transplant May 21 Jul 30 – Aug 1
Chadwick's Cherry Tomatoes tomato Transplant May 21 Jul 30 – Aug 19
Champion Radishes root vegetable Direct Sow May 14 Jun 8 – Jun 13
Chantenay Carrots root vegetable Direct Sow May 14 Jul 23
Chayote squash vegetable Plant Out May 21 Sep 18 – Sep 27 (before frost)
Cherokee Purple Tomatoes tomato Transplant May 21 Aug 7 – Aug 14
Cherokee Trail of Tears Bean legume Direct Sow May 14 Jul 18 – Aug 12
Cherry Belle Radish root vegetable Direct Sow May 14 Jun 8
Cherry Bomb peppers pepper Transplant May 21 Aug 4 – Aug 9
Cherry Queen Zinnia Flowers flower Direct Sow May 14 Jul 13 – Jul 23
Chicago Hardy Fig berry Plant Out May 7 Perennial — see plant page
Chinese 5-Color Peppers pepper Transplant May 21 Aug 4 – Aug 14
Chinese Snake Cucumber cucumber Direct Sow May 14 Jul 28
Chioggia Beet root vegetable Direct Sow May 14 Jul 8
Chives herb Plant Out May 7 Perennial — see plant page
Chocolate Bell Sweet Peppers pepper Transplant May 21 Jul 25 – Aug 9
Chocolate Cherry Sunflowers flower Direct Sow May 14 Jul 28 – Aug 12
Chocolate Cherry Tomatoes tomato Transplant May 21 Jul 30 – Aug 4
Chocolate Habanero Hot Peppers pepper Transplant May 21 Aug 14 – Sep 3
Chocolate Stripes Tomatoes tomato Transplant May 21 Aug 9
Christmas Lima Bean legume Direct Sow May 14 Aug 6 – Aug 12
Cinderella Pumpkin squash Direct Sow May 14 Sep 6
Cinnamon Basil herb Transplant May 14 Jul 18 – Aug 2
Clasping Coneflower flower Direct Sow May 14 Aug 7 – Aug 22
Classic Cumin herb Direct Sow May 14 Aug 22 – Sep 11
Classic Tomatillos vegetable Transplant May 14 Aug 2 – Aug 7
Clemson Spineless Okra vegetable Transplant May 21 Jul 15 – Jul 24
Cocozelle Summer Squash squash Direct Sow May 14 Jul 11
Common Sage herb Transplant May 14 Perennial — see plant page
Congo Watermelon melon Direct Sow May 21 Aug 19 – Aug 24
Contender Bush Bean legume Direct Sow May 14 Jun 28 – Jul 8
Corno di Toro Pepper pepper Transplant May 21 Aug 4 – Aug 9
Cosmic Purple Carrot root vegetable Direct Sow May 14 Jul 11 – Jul 28
Cosmos flower Transplant May 21 Jul 30 – Aug 19
Cosmos Sensations Mix Flowers flower Direct Sow May 7 Jul 21 – Aug 5
Costoluto Genovese Tomatoes tomato Transplant May 21 Jul 30 – Aug 9
County Fair Cucumbers cucumber Direct Sow May 14 Jul 3 – Jul 5
Crackerjack Mix Marigolds flower Transplant May 7 Jul 6 – Jul 21
Crego Mix Aster Flowers flower Transplant May 14 Aug 2 – Aug 12
Creole Tomatoes tomato Transplant May 21 Jul 30 – Aug 7
Crimson Clover cover crop Direct Sow May 7 Jul 6 – Aug 5
Crimson Forest Bunching Onions allium Transplant May 7 Jul 6
Crimson Sweet Watermelon melon Transplant May 21 Aug 9 – Aug 19
Crosby's Egyptian Beets root vegetable Direct Sow May 14 Jul 8 – Jul 13
Crosne tubers root vegetable Direct Sow May 14 Perennial — see plant page
Cuban Oregano herb Plant Out May 14 Perennial — see plant page
Cubanelle Peppers pepper Transplant May 28 Jul 29 – Aug 6
Culinary Turmeric root vegetable Transplant May 28 Jan 23, 2027 – Mar 24, 2027
Cupid Grape Tomatoes tomato Transplant May 21 Jul 25 – Jul 30
Curly Parsley herb Transplant May 7 Jul 16 – Jul 26
Cylindra Beets root vegetable Direct Sow May 14 Jul 13
Danvers Carrot root vegetable Direct Sow May 14 Jul 23 – Aug 2
Dark Green Summer Squash squash Direct Sow May 14 Jul 3
Dark Opal Basil herb Transplant May 21 Jul 20 – Aug 4
Datil peppers pepper Transplant May 21 Aug 19 – Sep 8
Delica Kabocha Squash squash Transplant May 21 Aug 24 – Sep 8
Delicata Squash squash Transplant May 21 Aug 9 – Aug 29
Delicious Tomatoes tomato Transplant May 21 Aug 4 – Aug 9
Detroit Dark Red Beet root vegetable Direct Sow May 14 Jul 13
Devils Tongue Yellow Hot Peppers pepper Transplant May 21 Aug 19 – Sep 8
Dill herb Direct Sow May 7 Jun 16 – Jul 1
Diva Cucumbers cucumber Direct Sow May 14 Jul 11
Dolce Fresca Basil herb Transplant May 21 Jul 20 – Jul 30
Dragon Tongue Bean legume Direct Sow May 14 Jul 8 – Jul 13
Dwarf Jewel Mix Nasturtium Flowers flower Direct Sow May 7 Jun 26 – Jul 6
Dwarf Long Pod Okra vegetable Direct Sow May 28 Jul 22 – Jul 27
Early Girl Tomatoes tomato Transplant May 21 Jul 12 – Jul 22
Early White Bush Scallop Pattypan Squash squash Transplant May 21 Jul 7 – Jul 15
Early Wonder Beets root vegetable Direct Sow May 14 Jul 3
Easter Egg Radishes root vegetable Direct Sow May 14 Jun 11 – Jun 15
Echinacea flower Plant Out May 7 Perennial — see plant page
Edamame legume Direct Sow May 14 Jul 28 – Aug 17
Egg Tomatoes tomato Transplant May 21 Aug 4 – Aug 9
Eight Ball Zucchini squash Direct Sow May 14 Jun 28 – Jul 8
Emerald Giant Sweet Peppers pepper Transplant May 21 Aug 4 – Aug 14
Emerald Green Velvet Okra vegetable Direct Sow May 21 Jul 15 – Jul 18
Empress of India Nasturtium Flowers flower Direct Sow May 7 Jul 1 – Jul 11
English Lavender herb Transplant May 21 Perennial — see plant page
English Lavender (companion planting) flower Plant Out May 7 Perennial — see plant page
English Thyme herb Transplant May 7 Perennial — see plant page
English White Daisy Flowers flower Transplant May 7 Perennial — see plant page
Epazote herb Direct Sow May 14 Jul 8 – Jul 18
Evening Sun Sunflowers flower Direct Sow May 14 Aug 2 – Aug 12
Everbearing Cucumber cucumber Direct Sow May 14 Jul 13
Evergreen Bunching Onions allium Transplant May 7 Jul 6 – Jul 11
Fava Bean legume Direct Sow May 14 Jul 28 – Aug 22
Firecracker Hot Peppers pepper Transplant May 21 Aug 9 – Sep 18
Fish Peppers pepper Transplant May 21 Jul 30 – Aug 9
Five Star Grape Tomatoes tomato Transplant May 21 Jul 22
Flat-Leaf Parsley herb Transplant May 7 Jul 16 – Aug 5
Floradade Tomatoes tomato Transplant May 21 Jul 30 – Aug 4
Florida Giant Watermelon melon Direct Sow May 21 Aug 14
Florida Market Eggplant vegetable Transplant May 21 Aug 9 – Aug 19
Fortex Pole Bean legume Direct Sow May 14 Jul 13 – Jul 23
French Breakfast Radish root vegetable Direct Sow May 14 Jun 4
French Fingerling Potato root vegetable Direct Sow May 14 Aug 15
French Marigold flower Transplant May 21 Jul 10 – Jul 20
French Tarragon herb Plant Out May 7 Perennial — see plant page
Fresno Peppers pepper Transplant May 21 Aug 4 – Aug 9
Gaillardia Annual Mix Flowers flower Direct Sow May 7 Jul 16 – Aug 5
Gardener's Delight Tomatoes tomato Transplant May 21 Jul 20 – Aug 4
Garlic Chives herb Plant Out May 7 Perennial — see plant page
Genovese Basil herb Transplant May 21 Jul 20 – Jul 30
Georgia Rattlesnake Watermelon melon Direct Sow May 21 Aug 19 – Aug 24
German Chamomile herb Direct Sow May 7 Jul 6 – Jul 11
German Johnson Tomatoes tomato Transplant May 21 Aug 14
Giant Maximum Mix Snapdragon Flowers flower Transplant May 7 Jul 26 – Aug 10
Ginger root vegetable Transplant May 28 Jan 23, 2027 – Mar 24, 2027
Glacier Tomatoes tomato Transplant May 21 Jul 15 – Jul 18
Globe Gilia Flowers flower Direct Sow May 7 Jul 6 – Jul 26
Glorious Gleam Nasturtium Flowers flower Direct Sow May 7 Jul 1 – Jul 16
Gochugaru Korean Peppers pepper Transplant May 21 Aug 4
Gold Rush Zucchini squash Direct Sow May 14 Jun 28 – Jul 3
Golden Bantam Sweet Corn vegetable Direct Sow May 21 Aug 9 – Aug 14
Golden Beet root vegetable Direct Sow May 14 Jul 8 – Jul 18
Golden Bush Scallop Summer Squash squash Direct Sow May 14 Jul 18
Golden Celery vegetable Transplant May 14 Aug 7 – Aug 17
Golden Detroit Beets root vegetable Direct Sow May 14 Jul 8 – Jul 13
Golden Globe Turnips root vegetable Direct Sow May 14 Jun 28 – Jul 3
Golden Hubbard Winter Squash squash Direct Sow May 14 Aug 22
Golden Marconi Sweet Peppers pepper Transplant May 21 Jul 25 – Aug 9
Golden Sunray Tomatoes tomato Transplant May 21 Aug 4 – Aug 9
Golden Wax Bush Bean legume Direct Sow May 14 Jul 3 – Jul 13
Goldrush Potato root vegetable Direct Sow May 14 Sep 2 – Sep 11
Grano Red Onions allium Transplant May 7 Sep 4
Grano White Onions allium Transplant May 7 Sep 4
Greek Basil herb Transplant May 14 Jul 18 – Jul 28
Greek Oregano herb Plant Out May 14 Perennial — see plant page
Green Arrow Pea legume Direct Sow May 14 Jul 18 – Jul 23
Green Cabbage brassica Transplant May 21 Jul 20 – Aug 29
Green Envy Tomatoes tomato Transplant May 21 Jul 20 – Jul 30
Green Fingers Persian Cucumber cucumber Direct Sow May 14 Jul 8 – Jul 13
Green Flesh Honeydew Melon melon Direct Sow May 21 Aug 14 – Aug 29
Green Globe Artichoke vegetable Transplant May 21 Perennial — see plant page
Green Grape Tomatoes tomato Transplant May 21 Jul 25 – Aug 7
Green Hubbard Winter Squash squash Direct Sow May 14 Sep 1
Green Marrow Summer Squash squash Direct Sow May 14 Aug 7
Green Purslane vegetable Direct Sow May 14 Jun 18 – Jul 3
Green shiso leaves herb Transplant May 14 Jul 13 – Jul 23
Green Striped Cushaw Crookneck Winter Squash squash Direct Sow May 14 Aug 27
Green Zebra Tomatoes tomato Transplant May 21 Aug 4 – Aug 7
Gypsy Peppers pepper Transplant May 28 Jul 27 – Aug 1
H-19 Little Leaf Cucumbers cucumber Direct Sow May 14 Jul 10 – Jul 15
Habanero Pepper pepper Transplant May 28 Aug 26 – Sep 25
Hailstone Radishes root vegetable Direct Sow May 14 Jun 13
Hairy vetch cover crop stands cover crop Direct Sow May 7 Jul 6 – Aug 5
Hale's Best Jumbo Cantaloupe melon Transplant May 21 Aug 9 – Aug 19
Harris Model Parsnips root vegetable Direct Sow May 14 Sep 6 – Sep 11
Harvester Bush Bean legume Direct Sow May 14 Jul 3 – Jul 8
Hatch Green Chile (NM 6-4) Peppers pepper Transplant May 21 Jul 30 – Aug 9
Heart of Gold Cantaloupe Melon melon Direct Sow May 21 Aug 14 – Aug 29
Heirloom Red Kuri Squash squash Direct Sow May 14 Aug 12 – Aug 22
Henderson Bush Lima Bean legume Direct Sow May 14 Jul 14 – Jul 23
Herb Fennel herb Direct Sow May 7 Perennial — see plant page
Heritage Rainbow Blend Carrots root vegetable Direct Sow May 14 Jul 23 – Jul 28
Highbush Blueberries berry Transplant May 21 Perennial — see plant page
Hillbilly Tomatoes tomato Transplant May 21 Aug 14
Holiday Marbles Hot Peppers pepper Transplant May 21 Aug 19 – Sep 8
Homemade Pickles Cucumber cucumber Direct Sow May 14 Jul 13
Homestead Tomatoes tomato Transplant May 21 Aug 9 – Aug 14
Honey Bee Tomatoes tomato Transplant May 21 Jul 20
Honey Rock Cantaloupe Melon melon Direct Sow May 21 Aug 14 – Aug 29
Horehound Herb herb Direct Sow May 7 Perennial — see plant page
Horseradish vegetable Plant Out May 7 Perennial — see plant page
Hungarian Hot Wax Pepper pepper Transplant May 21 Jul 25 – Aug 4
Imperial Star Artichoke vegetable Transplant May 7 Aug 5 – Aug 15
Improved Meyer Lemon berry Plant Out May 21 Perennial — see plant page
Indian Spring Mix Hollyhock Flowers flower Direct Sow May 7 Sep 4 – Sep 27 (before frost)
Indigo Rose Tomatoes tomato Transplant May 21 Aug 4 – Aug 19
Isis Candy Cherry Tomatoes tomato Transplant May 14 Jul 23 – Aug 2
Italian Large Leaf Basil herb Transplant May 14 Jul 13 – Jul 28
Italian Oregano herb Transplant May 7 Perennial — see plant page
Jack Be Little Pumpkin squash Direct Sow May 14 Aug 17
Jack O'Lantern Pumpkin squash Transplant May 21 Aug 19 – Sep 8
Jacob's Cattle beans legume Direct Sow May 14 Aug 5 – Aug 12
Jade Bush Bean legume Direct Sow May 14 Jul 8 – Jul 13
Jalapeño Peppers pepper Transplant May 21 Jul 25 – Aug 4
Japanese Eggplant vegetable Transplant May 21 Jul 10 – Jul 25
Jaune Flamme Tomatoes tomato Transplant May 21 Aug 9
Jerusalem artichoke tubers root vegetable Direct Sow May 14 Perennial — see plant page
Jet Star Tomatoes tomato Transplant May 21 Jul 30 – Aug 1
Jewel Black Raspberry berry Plant Out May 7 Perennial — see plant page
Jimmy Nardello Peppers pepper Transplant May 28 Aug 16 – Aug 26
Jubilee Tomatoes tomato Transplant May 21 Aug 4 – Aug 9
Jubilee Watermelon melon Direct Sow May 21 Aug 19 – Aug 24
Juliet Tomatoes tomato Transplant May 21 Jul 19 – Jul 21
Kapoor Tulsi (Holy Basil) herb Transplant May 21 Jul 20
Kellogg's Breakfast tomatoes tomato Transplant May 14 Jul 28 – Aug 7
Kennebec Potato root vegetable Direct Sow May 14 Sep 1 – Sep 26
Kentucky Wonder Pole Bean legume Direct Sow May 14 Jul 18
King Arthur Peppers pepper Transplant May 28 Jul 26
King of the Garden Pole Lima Bean legume Direct Sow May 14 Aug 10 – Aug 17
Kuroda Carrots root vegetable Direct Sow May 14 Jul 23
Lacy Phacelia Flowers flower Direct Sow May 7 Jun 21 – Jul 6
Lanceleaf Coreopsis Flowers flower Direct Sow May 7 Perennial — see plant page
Landreth Bush Bean legume Direct Sow May 14 Jul 3 – Jul 8
Large Red Cherry Tomatoes tomato Transplant May 21 Jul 30 – Aug 9
Lebanese White Bush Summer Squash squash Direct Sow May 14 Jul 3
Lemon Balm herb Plant Out May 7 Perennial — see plant page
Lemon Cucumber cucumber Transplant May 21 Jul 20 – Jul 30
Lemon Habanero Hot Peppers pepper Transplant May 21 Aug 14 – Sep 3
Lemon Mint Herb herb Direct Sow May 7 Aug 5
Lemon Verbena herb Plant Out May 14 Perennial — see plant page
Lemongrass herb Transplant May 21 Perennial — see plant page
Lettuce Leaf Basil herb Transplant May 14 Jul 18 – Aug 2
Licorice Basil herb Transplant May 14 Jul 18 – Aug 2
Lima Bean legume Direct Sow May 14 Jul 13 – Aug 2
Lime Basil herb Transplant May 14 Jul 18 – Jul 28
Little Fingers Carrots root vegetable Direct Sow May 14 Jul 8
Little Marvel Pea legume Direct Sow May 14 Jul 13 – Jul 16
Long Green Louisiana Eggplant vegetable Transplant May 21 Jul 25 – Jul 30
Long Island Cheese Winter Squash squash Direct Sow May 14 Aug 30
Long Ping Tung Eggplant vegetable Transplant May 21 Jul 15 – Jul 20
Long Purple Italian Eggplant vegetable Transplant May 21 Aug 4
Lovage Herb herb Direct Sow May 7 Perennial — see plant page
Love-in-a-Mist Flowers flower Direct Sow May 7 Jul 11 – Jul 16
Luffa gourds vegetable Transplant May 21 Aug 29 – Sep 18
Luminosa Zinnia Flowers flower Direct Sow May 14 Jul 13 – Jul 23
Lunar White Carrots root vegetable Direct Sow May 14 Jul 8 – Jul 13
Lunchbox Mini Peppers pepper Transplant May 28 Jul 22 – Jul 27
Mammoth Melting Sugar Snow Pea legume Direct Sow May 14 Jul 21 – Jul 28
Mammoth Sandwich Island Salsify root vegetable Direct Sow May 14 Sep 11
Mammoth Sunflower flower Direct Sow May 7 Jul 11 – Jul 26
Manitoba Tomatoes tomato Transplant May 21 Jul 26
Marglobe Improved Tomatoes tomato Transplant May 21 Jul 30 – Aug 9
Marglobe Supreme Tomatoes tomato Transplant May 21 Jul 30 – Aug 9
Mariachi Peppers pepper Transplant May 21 Jul 26 – Aug 4
Marion Blackberry berry Plant Out May 7 Perennial — see plant page
Marion Tomatoes tomato Transplant May 21 Aug 4 – Aug 9
Marketer Cucumber cucumber Direct Sow May 14 Jul 8
Marketmore 76 Cucumber cucumber Transplant May 21 Jul 18 – Jul 28
Matt's Wild Cherry Tomatoes tomato Transplant May 14 Jul 8 – Jul 18
Maxibel Filet Bean legume Direct Sow May 14 Jul 3 – Jul 13
Maximilian Sunflowers flower Direct Sow May 7 Perennial — see plant page
McKana Giants Mix Columbine Flowers flower Direct Sow May 7 Perennial — see plant page
Midnight Snack Tomatoes tomato Transplant May 21 Jul 25 – Jul 30
Minowase Daikon Radish root vegetable Direct Sow May 14 Jun 28 – Jul 8
Money Maker Tomatoes tomato Transplant May 21 Aug 4 – Aug 14
Moon & Stars Red-Flesh Watermelon melon Direct Sow May 21 Aug 19 – Aug 29
Moon & Stars Yellow-Flesh Watermelon melon Direct Sow May 21 Aug 19 – Aug 29
Mortgage Lifter Tomatoes tomato Transplant May 21 Aug 9 – Aug 14
Mountain Magic Tomatoes tomato Transplant May 21 Aug 1 – Aug 4
Mr. Stripey Tomatoes tomato Transplant May 21 Aug 9
Mrs. Burns Lemon Basil herb Transplant May 14 Jul 13 – Jul 23
Mucho Nacho Jalapeño Peppers pepper Transplant May 21 Jul 28 – Jul 30
Mugwort herb Direct Sow May 7 Perennial — see plant page
Muncher Cucumber cucumber Direct Sow May 14 Jul 13 – Jul 18
Nagami Kumquat berry Plant Out May 21 Perennial — see plant page
Nantes Carrot root vegetable Direct Sow May 14 Jul 15 – Jul 28
Napoletano Basil herb Transplant May 21 Aug 4
Nasturtium flower Direct Sow May 7 Jun 26 – Jul 11
National Pickling Cucumber cucumber Transplant May 21 Jul 10 – Jul 18
New Sunn Hemp Cover Crop cover crop Direct Sow May 21 Jul 20 – Aug 19
Nodding Catchfly Flowers flower Direct Sow May 7 Jul 6 – Aug 5
NuMex Twilight Hot Peppers pepper Transplant May 21 Aug 19 – Sep 18
Nutri-Red Carrots root vegetable Direct Sow May 14 Jul 23
Orange Flesh Honeydew Melon melon Direct Sow May 21 Aug 14 – Aug 29
Orange Habanero Hot Peppers pepper Transplant May 21 Aug 14 – Sep 3
Orange Horizon Sweet Peppers pepper Transplant May 21 Aug 4 – Aug 9
Orange King Zinnia Flowers flower Direct Sow May 14 Jul 13 – Jul 23
Orange Oxheart Tomatoes tomato Transplant May 21 Aug 4 – Aug 14
Orange Sulphur Cosmos Flowers flower Direct Sow May 7 Jul 1 – Jul 16
Oregon Giant Snow Pea legume Direct Sow May 14 Jul 13
Oregon Spring Tomatoes tomato Transplant May 21 Jul 18 – Jul 30
Oregon Sugar Pod Snow Pea legume Direct Sow May 14 Jul 13 – Jul 21
Orion Florence Fennel vegetable Transplant May 14 Aug 2 – Aug 12
Ox-Eye Daisy Flowers flower Transplant May 7 Perennial — see plant page
Pacific Giant Pumpkin squash Direct Sow May 14 Sep 6 – Sep 16
Padron Peppers pepper Transplant May 28 Jul 27
Painted Mountain Flour Corn vegetable Direct Sow May 7 Jul 31
Pandora Striped Eggplant vegetable Transplant May 21 Aug 4 – Aug 9
Par-Cel Cutting Celery vegetable Plant Out May 7 Jul 26 – Jul 31
Paris Market Carrots root vegetable Direct Sow May 14 Jul 18
Paris Yellow Pumpkin squash Direct Sow May 14 Aug 22
Parsnip root vegetable Direct Sow May 14 Aug 22 – Sep 21
Pasilla de Oaxaca Hot Peppers pepper Transplant May 21 Aug 4 – Aug 14
Patio Princess Tomatoes tomato Transplant May 21 Jul 25 – Jul 30
Paul Robeson tomatoes tomato Transplant May 14 Jul 23 – Aug 7
Peach Melba Nasturtium Flowers flower Direct Sow May 7 Jun 26 – Jul 6
Peppermint herb Plant Out May 7 Perennial — see plant page
Pepperoncini Pepper pepper Transplant May 21 Jul 25 – Aug 4
Pesto Perpetuo Basil herb Transplant May 21 Jul 20 – Aug 19
Petch Siam Thai Eggplant vegetable Plant Out May 7 Jul 8
Phacelia cover crop and bee forage cover crop Direct Sow May 7 Jun 21 – Jul 6
Pimento Sweet Peppers pepper Transplant May 21 Aug 14 – Aug 19
Pineapple Tomatillos vegetable Transplant May 14 Jul 23 – Aug 2
Pineapple Tomatoes tomato Transplant May 21 Aug 4 – Aug 14
Pink Banana Jumbo Winter Squash squash Direct Sow May 14 Aug 22 – Sep 1
Pink Delicious Tomatoes tomato Transplant May 21 Aug 9 – Aug 13
Pink Oxheart Tomatoes tomato Transplant May 21 Aug 9 – Aug 19
Pinkeye Purple Hull Cowpea legume Direct Sow May 14 Jul 13 – Jul 23
Pistou Basil herb Transplant May 21 Jul 20
Pixie Delight Lupine Flowers flower Direct Sow May 7 Aug 5 – Aug 25
Plains Coreopsis flower Direct Sow May 7 Jul 6 – Jul 16
Planters Jumbo Cantaloupe Melon melon Direct Sow May 21 Aug 14
Poblano Peppers pepper Transplant May 21 Jul 25
Polar Bear Zinnia Flowers flower Direct Sow May 14 Jul 13 – Jul 23
Ponderosa Red Beefsteak Tomatoes tomato Transplant May 21 Aug 9 – Aug 19
Poona Kheera Cucumbers cucumber Direct Sow May 14 Jul 8 – Jul 18
Popcorn vegetable Direct Sow May 7 Jul 31 – Sep 4
Potato onion clusters allium Plant Out May 7 Aug 5 – Sep 4
Powderpuff Aster Flowers flower Transplant May 14 Jul 28 – Aug 7
Pretty Purple Hot Peppers pepper Transplant May 21 Aug 19 – Sep 18
Prizewinner Runner Pole Bean legume Direct Sow May 14 Jul 28 – Aug 4
Progress No. 9 Shelling Pea legume Direct Sow May 14 Jul 11 – Jul 15
Provider Bush Bean legume Direct Sow May 14 Jul 3 – Jul 8
Purple Basil herb Transplant May 21 Jul 30 – Aug 14
Purple Beauty Sweet Peppers pepper Transplant May 21 Jul 30 – Aug 4
Purple Carrots root vegetable Direct Sow May 14 Jul 23 – Jul 28
Purple Haze Carrots root vegetable Direct Sow May 14 Jul 26
Purple Plum Radishes root vegetable Direct Sow May 14 Jun 11 – Jun 13
Purple Tiger Hot Peppers pepper Transplant May 21 Aug 19 – Aug 29
Purple Tomatillos vegetable Transplant May 14 Jul 28 – Aug 7
Purple Top White Globe Turnip root vegetable Direct Sow May 14 Jul 3
Pápalo leaves herb Direct Sow May 7 Jul 16 – Jul 26
Queen Anne's Lace Flowers flower Direct Sow May 7 Jul 11 – Jul 21
Queensland Blue Winter Squash squash Direct Sow May 14 Aug 22 – Sep 11
Rainbow Corn vegetable Direct Sow May 14 Aug 27 – Sep 6
Rambo Radish Microgreens microgreen Plant Out May 7 May 17 – May 22
Rattlesnake Pole Bean legume Direct Sow May 14 Jul 13 – Jul 23
Red Burgundy Okra vegetable Direct Sow May 21 Jul 15 – Jul 20
Red Burgundy Onions allium Transplant May 7 Aug 25 – Sep 4
Red Cabbage brassica Transplant May 21 Jul 20 – Aug 29
Red Caribbean Habanero Hot Peppers pepper Transplant May 21 Aug 14 – Sep 3
Red Cayenne Hot Peppers pepper Transplant May 21 Aug 4 – Aug 14
Red Cherry Hot Peppers pepper Transplant May 21 Aug 4 – Aug 9
Red Currant Tomato tomato Plant Out May 7 Jul 16 – Jul 26
Red Garnet Amaranth vegetable Direct Sow May 14 Jul 8 – Jul 13
Red Mushroom Hot Peppers pepper Transplant May 21 Aug 4 – Aug 14
Red Pear Tomatoes tomato Transplant May 21 Jul 25 – Aug 4
Red Pontiac Potato root vegetable Direct Sow May 14 Aug 12 – Sep 1
Red Prairie Mexican Hat Flowers flower Direct Sow May 14 Perennial — see plant page
Red Robin Tomatoes tomato Transplant May 21 Jul 15
Red Rubin Basil herb Transplant May 21 Aug 1
Red Scotch Bonnet Pepper pepper Transplant May 21 Aug 24 – Sep 18
Red Velvet Leaf Basil herb Transplant May 14 Jul 18 – Aug 2
Rhubarb vegetable Plant Out May 7 Perennial — see plant page
Rio Grande Tomatoes tomato Transplant May 21 Aug 4 – Aug 9
Roma II Bush Bean legume Direct Sow May 14 Jul 6 – Jul 12
Roma VF Tomatoes tomato Transplant May 21 Aug 4 – Aug 9
Roman Chamomile herb Transplant May 7 Perennial — see plant page
Romanesco brassica Transplant May 21 Aug 4 – Aug 29
Romano Pole Bean legume Direct Sow May 14 Jul 13 – Jul 21
Roselle calyces and leaves vegetable Transplant May 14 Oct 11 – Nov 10
Rosemary herb Transplant May 21 Perennial — see plant page
Round de Nice Zucchini Summer Squash squash Direct Sow May 14 Jul 5
Round Mauve Eggplant vegetable Transplant May 21 Aug 9 – Aug 19
Royal Burgundy Bush Bean legume Direct Sow May 14 Jul 8
Royalty Purple Raspberry berry Plant Out May 7 Perennial — see plant page
Rue herb Transplant May 7 Perennial — see plant page
Russell Mix Lupine Flowers flower Direct Sow May 7 Perennial — see plant page
Russian Tarragon herb Direct Sow May 7 Perennial — see plant page
Rutgers Tomato tomato Transplant May 21 Jul 30 – Aug 9
Sakura Tomatoes tomato Transplant May 21 Jul 15 – Jul 20
Salad Bush Cucumbers cucumber Direct Sow May 14 Jul 10 – Jul 11
San Marzano Tomatoes tomato Transplant May 21 Aug 7 – Aug 17
Santa Fe Grande Hot Peppers pepper Transplant May 21 Aug 4 – Aug 9
Scarlet Runner Bean legume Direct Sow May 14 Perennial — see plant page
Scarlet Sage Flowers flower Transplant May 14 Perennial — see plant page
Serrano Peppers pepper Transplant May 21 Jul 30 – Aug 9
Shasta Daisy Flowers flower Transplant May 7 Perennial — see plant page
Shelling Pea legume Direct Sow May 14 Jul 8 – Jul 23
Shishito Peppers pepper Transplant May 28 Jul 27 – Aug 1
Showy Pink Ladies Evening Primrose Flowers flower Direct Sow May 7 Perennial — see plant page
Signet marigold edible flowers flower Direct Sow May 7 Jul 6 – Jul 11
Silver Queen Sweet Corn vegetable Direct Sow May 7 Aug 5 – Aug 7
Single Mix China Aster Flowers flower Transplant May 14 Jul 23 – Aug 2
Slenderette Bush Bean legume Direct Sow May 14 Jul 6 – Jul 10
Slow-Bolt (Slo-Bolt) Cilantro/Coriander herb Direct Sow May 7 Jun 4 – Jun 16
Snow Crown Cauliflower brassica Transplant May 21 Jul 10 – Jul 20
Snow Pea legume Direct Sow May 14 Jul 5 – Jul 23
Snow White Carrots root vegetable Direct Sow May 14 Jul 23 – Jul 28
Soapwort flower Transplant May 14 Perennial — see plant page
Solar Yellow Carrots root vegetable Direct Sow May 14 Jul 23 – Jul 28
Southport Red Globe Onions allium Transplant May 7 Sep 4
Southport White Globe Onions allium Transplant May 7 Sep 4
Spacemaster Bush Cucumber cucumber Direct Sow May 14 Jul 13 – Jul 18
Spaghetti Squash squash Transplant May 21 Aug 17 – Aug 29
Spanish Sweet White Onions allium Transplant May 7 Aug 25 – Sep 4
Sparkler Radishes root vegetable Direct Sow May 14 Jun 8 – Jun 13
Sparky Mix Marigolds flower Transplant May 7 Jul 1 – Jul 16
Spearmint herb Plant Out May 7 Perennial — see plant page
Speckled Pea Shoot Microgreens microgreen Plant Out May 7 May 15 – May 21
Spicy Globe Basil herb Transplant May 21 Jul 30
St. Valery Carrots root vegetable Direct Sow May 14 Jul 23
Stevia herb Transplant May 21 Perennial — see plant page
Straight Eight Cucumber cucumber Direct Sow May 14 Jul 13 – Jul 18
Stupice Tomatoes tomato Transplant May 21 Jul 15 – Jul 30
Sugar Ann Snap Pea legume Direct Sow May 14 Jul 8
Sugar Baby Watermelon melon Transplant May 21 Aug 4 – Aug 9
Sugar Pie Pumpkin squash Transplant May 21 Aug 19 – Sep 8
Sugar Snap Pea legume Direct Sow May 14 Jul 8 – Jul 23
Summer Carnival Mix Hollyhock Flowers flower Direct Sow May 7 Sep 4 – Sep 27 (before frost)
Summer Max Mix Cover Crop cover crop Direct Sow May 21 Jul 5 – Jul 20
Summer Savory herb Direct Sow May 14 Jul 8 – Jul 18
Sun Gold Sunflowers flower Direct Sow May 14 Aug 2 – Aug 17
Sun Gold Tomatoes tomato Transplant May 21 Jul 17 – Jul 25
Sunbright Yellow Sweet Peppers pepper Transplant May 21 Aug 4 – Aug 9
SunChocola Tomatoes tomato Transplant May 21 Jul 20 – Jul 30
Sungella Tomatoes tomato Transplant May 21 Jul 20 – Jul 30
Sunray Tomatoes tomato Transplant May 21 Aug 4 – Aug 9
Sunshine Blue Blueberry berry Plant Out May 14 Perennial — see plant page
Sunshine Kabocha Squash squash Direct Sow May 14 Aug 17 – Aug 22
Sunspot Sunflowers flower Direct Sow May 14 Jul 8 – Jul 23
Suyo Long Cucumbers cucumber Direct Sow May 14 Jul 13 – Jul 18
Sweet 100 Tomatoes tomato Transplant May 21 Jul 20 – Jul 25
Sweet Alyssum flower Transplant May 21 Jun 30 – Jul 15
Sweet Marjoram herb Transplant May 14 Jul 28 – Aug 12
Sweet Million Tomatoes tomato Transplant May 21 Jul 20 – Jul 25
Sweet Success Cucumbers cucumber Direct Sow May 14 Jul 7 – Jul 11
Sweet Treats Tomatoes tomato Transplant May 21 Jul 25 – Aug 4
Sweet Woodruff herb Transplant May 7 Perennial — see plant page
Tabasco Hot Peppers pepper Transplant May 21 Aug 9 – Aug 19
Table Queen Acorn Squash squash Transplant May 21 Aug 9 – Aug 29
Tall Trailing Mix Nasturtium Flowers flower Direct Sow May 7 Jul 1 – Jul 16
Tall Utah 52-70 Celery vegetable Transplant May 21 Aug 29 – Sep 28
Tansy herb Transplant May 7 Perennial — see plant page
Tasty Jade Cucumbers cucumber Direct Sow May 14 Jul 7
Tavera Filet Bean legume Direct Sow May 14 Jul 7
Taylor Dwarf Bush Bean legume Direct Sow May 14 Jul 18 – Jul 21
Tendercrisp Celery vegetable Transplant May 14 Aug 12 – Aug 27
Tendergreen Burpless Cucumber cucumber Direct Sow May 14 Jul 18
Tendergreen Bush Bean legume Direct Sow May 14 Jul 3 – Jul 8
Tendersweet Carrots root vegetable Direct Sow May 14 Jul 23
Tendersweet Orange Watermelon melon Direct Sow May 21 Aug 19 – Aug 24
Tepin Hot Peppers pepper Transplant May 21 Sep 18 – Sep 27 (before frost)
Texas Bluebonnet Lupine Flowers flower Direct Sow May 7 Jul 21 – Aug 10
Thai Basil herb Transplant May 21 Jul 20 – Jul 25
Thai Hot Peppers pepper Transplant May 21 Aug 4 – Aug 14
Thessaloniki Tomatoes tomato Transplant May 21 Jul 21 – Aug 1
Thorogreen Bush Lima Bean legume Direct Sow May 14 Jul 18 – Jul 28
Tiger Eye Bean legume Direct Sow May 14 Aug 2 – Aug 12
Tigerella Tomatoes tomato Transplant May 21 Jul 15 – Jul 30
Tiny Tim Tomatoes tomato Transplant May 21 Jul 5 – Jul 15
Tom Watson Watermelon melon Direct Sow May 21 Aug 14
Tomatillo vegetable Transplant May 21 Jul 20 – Aug 14
Tongue of Fire Bean legume Direct Sow May 14 Jul 13 – Aug 17
Top Crop Bush Bean legume Direct Sow May 14 Jul 3 – Jul 8
Tri Color Amaranth (Joseph's Coat) vegetable Direct Sow May 14 Jun 13 – Jun 28
Tri-X 313 Seedless Watermelon melon Transplant May 21 Jul 25 – Aug 4
Trinidad Moruga Scorpion peppers pepper Transplant May 21 Aug 9 – Sep 18
Triple Crown Blackberry berry Plant Out May 7 Perennial — see plant page
Tropical Milkweed Flowers flower Transplant May 14 Perennial — see plant page
Trucker's Favorite Corn vegetable Direct Sow May 14 Jul 28 – Aug 7
True Watercress vegetable Direct Sow May 7 Perennial — see plant page
Tumbling Tom Red Tomatoes tomato Transplant May 21 Jul 25 – Jul 30
Turkish Orange Eggplant vegetable Transplant May 21 Aug 14 – Aug 19
Upland Cress vegetable Direct Sow May 7 Perennial — see plant page
Velvet Queen Sunflowers flower Direct Sow May 14 Jul 28 – Aug 12
Verde Tomatillos vegetable Transplant May 14 Jul 28 – Aug 7
Vermont Cranberry Bean legume Direct Sow May 14 Jul 18 – Aug 17
Vietnamese Coriander herb Plant Out May 14 Perennial — see plant page
VR Moscow Tomatoes tomato Transplant May 21 Aug 9 – Aug 19
Waltham 29 Broccoli brassica Transplant May 21 Aug 4 – Aug 19
Waltham Butternut Squash squash Transplant May 21 Aug 29 – Sep 18
Wando Pea legume Direct Sow May 14 Jul 16 – Jul 21
Watermelon Radishes root vegetable Direct Sow May 14 Jul 3 – Jul 18
Wautoma Cucumbers cucumber Direct Sow May 14 Jul 13
Wee Be Little Pumpkin squash Direct Sow May 14 Aug 7
West Indian Burr Gherkin Cucumber cucumber Direct Sow May 14 Jul 8 – Jul 18
Whirlybird Nasturtium Flowers flower Direct Sow May 7 Jun 26 – Jul 6
White Cherry Tomatoes tomato Transplant May 21 Jul 19 – Jul 30
White Cloud Sweet Peppers pepper Transplant May 21 Jul 30 – Aug 4
White clover living mulch cover crop Direct Sow May 7 Perennial — see plant page
White Cushaw Crookneck Winter Squash squash Direct Sow May 14 Aug 22
White Detroit Beets root vegetable Direct Sow May 14 Jul 8 – Jul 13
White Emergo Runner Pole Bean legume Direct Sow May 14 Jul 28 – Aug 2
White Icicle Radishes root vegetable Direct Sow May 14 Jun 13
White Lisbon Bunching Onions allium Transplant May 7 Jul 6
White Marrow Summer Squash squash Direct Sow May 14 Aug 7
White Wonder Cucumber cucumber Direct Sow May 14 Jul 8 – Jul 13
Winter rye cover crop stands cover crop Direct Sow May 7 Nov 3 – Dec 13
Winter Savory herb Plant Out May 14 Perennial — see plant page
Wisconsin SMR 58 Cucumbers cucumber Direct Sow May 14 Jul 8 – Jul 11
Wormwood herb Transplant May 7 Perennial — see plant page
Yard Long Bean legume Direct Sow May 14 Jul 13 – Aug 12
Yarrow flower Plant Out May 7 Perennial — see plant page
Yellow Beefsteak Tomatoes tomato Transplant May 21 Aug 4 – Aug 14
Yellow Crookneck Squash squash Transplant May 21 Jul 10 – Jul 20
Yellow Jalapeno (Caloro) Hot Peppers pepper Transplant May 21 Aug 4 – Aug 14
Yellow Mushroom Hot Peppers pepper Transplant May 21 Aug 4 – Aug 14
Yellow Oxheart Tomatoes tomato Transplant May 21 Aug 8
Yellow Pear Tomatoes tomato Transplant May 21 Jul 30 – Aug 9
Yellow Scotch Bonnet Hot Peppers pepper Transplant May 21 Aug 19 – Sep 18
Yellow Sulphur Cosmos Flowers flower Direct Sow May 7 Jul 1 – Jul 16
Yolo Wonder Sweet Peppers pepper Transplant May 21 Jul 30 – Aug 9
Yukon Gold Potato root vegetable Direct Sow May 14 Jul 23 – Aug 12
Zinnia flower Transplant May 21 Jul 20 – Aug 19

Harvest in May

Plant Type Planted / Sown Harvest Window
America Spinach lettuce Apr 7 May 20 – Jun 1
Black Seeded Simpson Lettuce lettuce Apr 7 May 22 – May 23
Blonde de Paris Lettuce lettuce Apr 7 May 27 – Jun 6
Bloomsdale Longstanding Spinach lettuce Apr 7 May 22 – May 29
Bok Choy lettuce Apr 7 May 22 – Jun 6
Broadleaf Classic Endive lettuce Apr 7 May 27 – Jun 6
Burgundy Boston Lettuce lettuce Apr 7 May 27 – Jun 1
Buttercrunch Lettuce lettuce Apr 7 May 23 – Jun 1
Butterhead Lettuce lettuce Apr 7 May 27 – Jun 11
Canary Yellow Swiss Chard lettuce Apr 7 May 27 – Jun 6
Chervil herb Apr 16 May 21 – May 31
Chinese Broccoli (Gai Lan) brassica Apr 7 May 7 – May 27
Dutch Lamb's Lettuce lettuce Apr 7 May 17 – May 27
Dwarf Siberian Kale lettuce Apr 7 May 27 – Jun 1
Endive / Escarole lettuce Apr 7 May 22 – Jun 11
Fenugreek herb Apr 23 May 28 – Jun 12
Florida Broadleaf Mustard lettuce Apr 7 May 17 – May 27
Fordhook Giant Swiss Chard lettuce Apr 7 May 22 – Jun 1
French Lamb's Lettuce lettuce Apr 7 May 17 – May 27
Giant Red Mustard lettuce Apr 7 May 22
Green Ice Lettuce lettuce Apr 7 May 22
Green Mountain Celtuce lettuce Apr 7 May 27
Green Wave Mustard lettuce Apr 7 May 22
Hot Pink Swiss Chard lettuce Apr 7 May 27 – Jun 6
Leaf Lettuce Mix lettuce Apr 7 May 22 – Jun 1
Little Gem Lettuce lettuce Apr 7 May 27 – Jun 2
Lollo Bionda Lettuce lettuce Apr 7 May 27 – Jun 6
Lollo Rossa Lettuce lettuce Apr 7 May 30 – Jun 2
Marvel of Four Seasons Lettuce lettuce Apr 7 May 22 – Jun 6
Matador Viking Spinach lettuce Apr 7 May 22 – May 25
Mizuna lettuce Apr 7 May 17 – May 27
Monstrueux de Viroflay Spinach lettuce Apr 7 May 22 – May 27
Mustard Greens lettuce Apr 7 May 12 – May 27
New Zealand Spinach lettuce Apr 7 May 27 – Jun 6
Noble Giant Spinach lettuce Apr 7 May 23 – May 27
Old Fashion Mustard lettuce Apr 7 May 22 – May 27
Orange Swiss Chard lettuce Apr 7 May 22 – Jun 1
Premier Kale lettuce Apr 7 May 27 – Jun 6
Rainbow Mix Swiss Chard lettuce Apr 7 May 27 – Jun 6
Red Leaf Lettuce lettuce Apr 7 May 22 – Jun 1
Red Orach lettuce Apr 7 May 22
Red Russian Kale lettuce Apr 7 May 17 – May 27
Salad Bowl Green Lettuce lettuce Apr 7 May 26 – May 27
Shungiku (Edible Chrysanthemum) lettuce Apr 7 May 17 – Jun 1
Swiss Chard lettuce Apr 7 May 27 – Jun 6
Tango Lettuce lettuce Apr 7 May 23
Tatsoi lettuce Apr 7 May 2 – May 22
Tendergreen Mustard lettuce Apr 7 May 17 – May 27
Tom Thumb Lettuce lettuce Apr 7 May 27 – Jun 16
Vates Kale lettuce Apr 7 May 27 – Jun 1
White Boston Lettuce lettuce Apr 7 May 17 – May 27
Winner Kohlrabi brassica Apr 7 May 22 – May 27
Winter Density Lettuce lettuce Apr 7 May 31 – Jun 6
Winter Giant Spinach lettuce Apr 7 May 22 – May 27
Black Oil Sunflower Microgreens microgreen May 7 May 14 – May 19
Rambo Radish Microgreens microgreen May 7 May 17 – May 22
Speckled Pea Shoot Microgreens microgreen May 7 May 15 – May 21

Key Tasks for May in Zone 5A

  1. 1 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.
  2. 2 Direct sow seeds at the recommended depth and spacing. Keep the seedbed consistently moist until germination is complete.
  3. 3 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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