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Zone 5B — March

What to Plant in March in Zone 5B

March in Zone 5B: 257 crops to start indoors, 90 to plant or direct sow outside, and 0 entering harvest window. Last frost averages May 4. Reference city: Kansas City, MO.
Updated May 13, 2026 · Frost data from NOAA 1991-2020 Climate Normals
257 Start Indoors
90 Plant Outside
0 Harvest
Frost risk: High

Frost risk is still high in Zone 5B. The last spring frost typically lands on May 4, with the earliest plausible clearance around April 20. Hold tender crops indoors a while longer.

See full Zone 5B frost outlook

Start Indoors in March

Plant Type Start Indoors Transplant Outside Harvest Window
All Season Cabbage brassica Mar 16 Apr 20 Jun 29 – Jul 9
All Year Round Cauliflower brassica Mar 16 Apr 20 Jun 24
Brunswick Cabbage brassica Mar 16 Apr 20 Jul 19
Calabrese Broccoli brassica Mar 16 Apr 20 Jun 24
Carentan Leeks allium Mar 2 Apr 20 Jul 19 – Aug 8
Charleston Wakefield Cabbage brassica Mar 9 Apr 13 Jun 22
Copenhagen Cabbage brassica Mar 16 Apr 20 Jun 24
Danish Ballhead Cabbage brassica Mar 16 Apr 20 Jul 29 – Aug 8
Di Cicco Broccoli brassica Mar 16 Apr 20 Jun 4 – Jun 7
Drumhead Cabbage brassica Mar 16 Apr 20 Jul 19 – Jul 29
Early Jersey Wakefield Cabbage brassica Mar 9 Apr 13 Jun 17 – Jun 27
Early Purple Broccoli brassica Mar 16 Apr 20 Jun 24
Giant Musselburgh Leeks allium Mar 2 Apr 20 Aug 3
Glory of Enkhuizen Cabbage brassica Mar 16 Apr 20 Jul 19
Golden Acre Cabbage brassica Mar 16 Apr 20 Jun 24
Igloo Cauliflower brassica Mar 16 Apr 20 Jun 24 – Jun 29
Michihili Cabbage brassica Mar 9 Apr 13 Jun 22
OG American Flag Leeks allium Mar 2 Apr 20 Jul 19 – Jul 29
Red Acre Cabbage brassica Mar 9 Apr 13 Jun 27 – Jul 2
Savoy Perfection Cabbage brassica Mar 16 Apr 20 Jul 19 – Jul 24
Snowball Self-Blanche Cauliflower brassica Mar 16 Apr 20 Jun 24
Victoria Rhubarb vegetable Mar 2 Apr 20 Perennial — see plant page
Violetta Purple Cauliflower brassica Mar 16 Apr 20 Jun 24
Abe Lincoln Tomatoes tomato Mar 30 May 18 Aug 6 – Aug 16
Ace 55 Tomatoes tomato Mar 30 May 18 Aug 6 – Aug 11
Aji Amarillo Peppers pepper Mar 16 May 18 Aug 16 – Sep 15
Aji Dulce Peppers pepper Mar 16 May 18 Aug 16 – Sep 5
Amish Paste Tomatoes tomato Mar 30 May 18 Jul 31 – Aug 11
Anaheim Peppers pepper Mar 16 May 18 Aug 3 – Aug 11
Ancho Grande Hot Peppers pepper Mar 16 May 18 Aug 1 – Aug 11
Angelica herb Mar 2 May 4 Jul 23 – Aug 2
Anna Russian Tomatoes tomato Mar 30 May 18 Jul 27
Atkinson Tomatoes tomato Mar 30 May 18 Jul 27 – Aug 6
Aunt Molly's Ground Cherry vegetable Mar 30 May 18 Jul 27 – Aug 16
Aunt Ruby's German Green Tomatoes tomato Mar 30 May 18 Aug 6
Banana Peppers pepper Mar 23 May 25 Aug 5
Barletta, Pearly White Onions allium Mar 2 May 4 Jul 18 – Jul 23
Beefsteak Tomatoes tomato Mar 16 May 18 Aug 6 – Aug 11
Better Boy Tomatoes tomato Mar 30 May 18 Jul 27 – Aug 1
Bhut Jolokia Ghost Pepper pepper Mar 9 May 18 Aug 16 – Sep 15
Big Beef Tomatoes tomato Mar 30 May 18 Jul 27
Big Bertha Peppers pepper Mar 23 May 25 Aug 3 – Aug 6
Big Boy Tomatoes tomato Mar 30 May 18 Aug 4
Big Jim Hatch Chile pepper Mar 9 May 18 Jul 27 – Aug 1
Big Rainbow Tomatoes tomato Mar 30 May 18 Aug 11 – Aug 21
Birds Eye Hot Peppers pepper Mar 16 May 18 Aug 26 – Sep 5
Black Beauty Eggplant vegetable Mar 9 May 18 Aug 1 – Aug 16
Black Cherry Tomatoes tomato Mar 30 May 18 Jul 21 – Aug 1
Black From Tula Tomatoes tomato Mar 30 May 18 Aug 11
Black Krim Tomatoes tomato Mar 30 May 18 Aug 1 – Aug 6
Black Pearl Tomatoes tomato Mar 30 May 18 Jul 22
Blondkopfchen Tomatoes tomato Mar 30 May 18 Aug 1 – Aug 6
Bonny Best Tomatoes tomato Mar 30 May 18 Aug 1 – Aug 6
Bradley Tomatoes tomato Mar 30 May 18 Aug 1 – Aug 6
Brandywine Tomatoes tomato Mar 16 May 18 Aug 6 – Aug 16
Calendula flower Mar 30 May 18 Jul 7 – Jul 17
California Wonder Peppers pepper Mar 23 May 25 Aug 5 – Aug 8
Calypso Tomatoes tomato Mar 30 May 18 Aug 1 – Aug 6
Cardoon (Purple Artichoke Thistle) vegetable Mar 9 May 11 Perennial — see plant page
Caribe Tomatoes tomato Mar 30 May 18 Aug 1 – Aug 11
Carmello Tomatoes tomato Mar 30 May 18 Jul 27 – Aug 1
Carmen Peppers pepper Mar 23 May 25 Jul 24 – Aug 13
Carolina Reaper peppers pepper Mar 2 May 18 Aug 16 – Sep 15
Casper Eggplant vegetable Mar 16 May 18 Aug 1
Catmint herb Mar 16 May 4 Perennial — see plant page
Cayenne Peppers pepper Mar 16 May 18 Jul 27 – Aug 11
Celebrity Tomatoes tomato Mar 30 May 18 Jul 27 – Jul 29
Chadwick's Cherry Tomatoes tomato Mar 30 May 18 Jul 27 – Aug 16
Cherokee Purple Tomatoes tomato Mar 16 May 18 Aug 4 – Aug 11
Cherry Bomb peppers pepper Mar 2 May 18 Aug 1 – Aug 6
Chinese 5-Color Peppers pepper Mar 16 May 18 Aug 1 – Aug 11
Chocolate Bell Sweet Peppers pepper Mar 16 May 18 Jul 22 – Aug 6
Chocolate Cherry Tomatoes tomato Mar 30 May 18 Jul 27 – Aug 1
Chocolate Habanero Hot Peppers pepper Mar 16 May 18 Aug 11 – Aug 31
Chocolate Stripes Tomatoes tomato Mar 30 May 18 Aug 6
Common Sage herb Mar 23 May 11 Perennial — see plant page
Corno di Toro Pepper pepper Mar 9 May 18 Aug 1 – Aug 6
Costoluto Genovese Tomatoes tomato Mar 30 May 18 Jul 27 – Aug 6
Crackerjack Mix Marigolds flower Mar 30 May 4 Jul 3 – Jul 18
Crego Mix Aster Flowers flower Mar 23 May 11 Jul 30 – Aug 9
Creole Tomatoes tomato Mar 30 May 18 Jul 27 – Aug 4
Crimson Forest Bunching Onions allium Mar 16 May 4 Jul 3
Cubanelle Peppers pepper Mar 23 May 25 Jul 26 – Aug 3
Culinary Turmeric root vegetable Mar 30 May 25 Jan 20, 2027 – Mar 21, 2027
Cupid Grape Tomatoes tomato Mar 30 May 18 Jul 22 – Jul 27
Curly Parsley herb Mar 2 May 4 Jul 13 – Jul 23
Dark Opal Basil herb Mar 30 May 18 Jul 17 – Aug 1
Datil peppers pepper Mar 2 May 18 Aug 16 – Sep 5
Delicious Tomatoes tomato Mar 30 May 18 Aug 1 – Aug 6
Devils Tongue Yellow Hot Peppers pepper Mar 16 May 18 Aug 16 – Sep 5
Dolce Fresca Basil herb Mar 30 May 18 Jul 17 – Jul 27
Early Girl Tomatoes tomato Mar 30 May 18 Jul 9 – Jul 19
Egg Tomatoes tomato Mar 30 May 18 Aug 1 – Aug 6
Emerald Giant Sweet Peppers pepper Mar 16 May 18 Aug 1 – Aug 11
English Lavender herb Mar 16 May 18 Perennial — see plant page
English Thyme herb Mar 2 May 4 Perennial — see plant page
English White Daisy Flowers flower Mar 2 May 4 Perennial — see plant page
Evergreen Bunching Onions allium Mar 16 May 4 Jul 3 – Jul 8
Firecracker Hot Peppers pepper Mar 16 May 18 Aug 6 – Sep 15
Fish Peppers pepper Mar 16 May 18 Jul 27 – Aug 6
Five Star Grape Tomatoes tomato Mar 30 May 18 Jul 19
Flat-Leaf Parsley herb Mar 2 May 4 Jul 13 – Aug 2
Floradade Tomatoes tomato Mar 30 May 18 Jul 27 – Aug 1
Florida Market Eggplant vegetable Mar 16 May 18 Aug 6 – Aug 16
Fresno Peppers pepper Mar 16 May 18 Aug 1 – Aug 6
Gardener's Delight Tomatoes tomato Mar 30 May 18 Jul 17 – Aug 1
Genovese Basil herb Mar 30 May 18 Jul 17 – Jul 27
German Johnson Tomatoes tomato Mar 30 May 18 Aug 11
Giant Maximum Mix Snapdragon Flowers flower Mar 2 May 4 Jul 23 – Aug 7
Ginger root vegetable Mar 30 May 25 Jan 20, 2027 – Mar 21, 2027
Glacier Tomatoes tomato Mar 30 May 18 Jul 12 – Jul 15
Gochugaru Korean Peppers pepper Mar 16 May 18 Aug 1
Golden Marconi Sweet Peppers pepper Mar 16 May 18 Jul 22 – Aug 6
Golden Sunray Tomatoes tomato Mar 30 May 18 Aug 1 – Aug 6
Grano Red Onions allium Mar 2 May 4 Sep 1
Grano White Onions allium Mar 2 May 4 Sep 1
Green Envy Tomatoes tomato Mar 30 May 18 Jul 17 – Jul 27
Green Globe Artichoke vegetable Mar 9 May 18 Perennial — see plant page
Green Grape Tomatoes tomato Mar 30 May 18 Jul 22 – Aug 4
Green Zebra Tomatoes tomato Mar 30 May 18 Aug 1 – Aug 4
Gypsy Peppers pepper Mar 23 May 25 Jul 24 – Jul 29
Habanero Pepper pepper Mar 9 May 25 Aug 23 – Sep 22
Hatch Green Chile (NM 6-4) Peppers pepper Mar 16 May 18 Jul 27 – Aug 6
Highbush Blueberries berry Mar 9 May 18 Perennial — see plant page
Hillbilly Tomatoes tomato Mar 30 May 18 Aug 11
Holiday Marbles Hot Peppers pepper Mar 16 May 18 Aug 16 – Sep 5
Homestead Tomatoes tomato Mar 30 May 18 Aug 6 – Aug 11
Honey Bee Tomatoes tomato Mar 30 May 18 Jul 17
Hungarian Hot Wax Pepper pepper Mar 9 May 18 Jul 22 – Aug 1
Imperial Star Artichoke vegetable Mar 2 May 4 Aug 2 – Aug 12
Indigo Rose Tomatoes tomato Mar 30 May 18 Aug 1 – Aug 16
Isis Candy Cherry Tomatoes tomato Mar 23 May 11 Jul 20 – Jul 30
Italian Oregano herb Mar 16 May 4 Perennial — see plant page
Jalapeño Peppers pepper Mar 16 May 18 Jul 22 – Aug 1
Japanese Eggplant vegetable Mar 23 May 18 Jul 7 – Jul 22
Jaune Flamme Tomatoes tomato Mar 30 May 18 Aug 6
Jet Star Tomatoes tomato Mar 30 May 18 Jul 27 – Jul 29
Jimmy Nardello Peppers pepper Mar 23 May 25 Aug 13 – Aug 23
Jubilee Tomatoes tomato Mar 30 May 18 Aug 1 – Aug 6
Juliet Tomatoes tomato Mar 30 May 18 Jul 16 – Jul 18
Kapoor Tulsi (Holy Basil) herb Mar 30 May 18 Jul 17
Kellogg's Breakfast tomatoes tomato Mar 23 May 11 Jul 25 – Aug 4
King Arthur Peppers pepper Mar 23 May 25 Jul 23
Large Red Cherry Tomatoes tomato Mar 30 May 18 Jul 27 – Aug 6
Lemon Habanero Hot Peppers pepper Mar 16 May 18 Aug 11 – Aug 31
Lemongrass herb Mar 16 May 18 Perennial — see plant page
Long Green Louisiana Eggplant vegetable Mar 16 May 18 Jul 22 – Jul 27
Long Ping Tung Eggplant vegetable Mar 16 May 18 Jul 12 – Jul 17
Long Purple Italian Eggplant vegetable Mar 16 May 18 Aug 1
Lunchbox Mini Peppers pepper Mar 23 May 25 Jul 19 – Jul 24
Manitoba Tomatoes tomato Mar 30 May 18 Jul 23
Marglobe Improved Tomatoes tomato Mar 30 May 18 Jul 27 – Aug 6
Marglobe Supreme Tomatoes tomato Mar 30 May 18 Jul 27 – Aug 6
Mariachi Peppers pepper Mar 16 May 18 Jul 23 – Aug 1
Marion Tomatoes tomato Mar 30 May 18 Aug 1 – Aug 6
Matt's Wild Cherry Tomatoes tomato Mar 23 May 11 Jul 5 – Jul 15
Midnight Snack Tomatoes tomato Mar 30 May 18 Jul 22 – Jul 27
Money Maker Tomatoes tomato Mar 30 May 18 Aug 1 – Aug 11
Mortgage Lifter Tomatoes tomato Mar 16 May 18 Aug 6 – Aug 11
Mountain Magic Tomatoes tomato Mar 30 May 18 Jul 29 – Aug 1
Mr. Stripey Tomatoes tomato Mar 30 May 18 Aug 6
Mrs. Burns Lemon Basil herb Mar 23 May 11 Jul 10 – Jul 20
Mucho Nacho Jalapeño Peppers pepper Mar 30 May 18 Jul 25 – Jul 27
Napoletano Basil herb Mar 30 May 18 Aug 1
NuMex Twilight Hot Peppers pepper Mar 16 May 18 Aug 16 – Sep 15
Orange Habanero Hot Peppers pepper Mar 16 May 18 Aug 11 – Aug 31
Orange Horizon Sweet Peppers pepper Mar 16 May 18 Aug 1 – Aug 6
Orange Oxheart Tomatoes tomato Mar 30 May 18 Aug 1 – Aug 11
Oregon Spring Tomatoes tomato Mar 30 May 18 Jul 15 – Jul 27
Ox-Eye Daisy Flowers flower Mar 2 May 4 Perennial — see plant page
Padron Peppers pepper Mar 23 May 25 Jul 24
Pandora Striped Eggplant vegetable Mar 16 May 18 Aug 1 – Aug 6
Pasilla de Oaxaca Hot Peppers pepper Mar 16 May 18 Aug 1 – Aug 11
Patio Princess Tomatoes tomato Mar 30 May 18 Jul 22 – Jul 27
Paul Robeson tomatoes tomato Mar 23 May 11 Jul 20 – Aug 4
Pepperoncini Pepper pepper Mar 16 May 18 Jul 22 – Aug 1
Pesto Perpetuo Basil herb Mar 30 May 18 Jul 17 – Aug 16
Pimento Sweet Peppers pepper Mar 16 May 18 Aug 11 – Aug 16
Pineapple Tomatillos vegetable Mar 23 May 11 Jul 20 – Jul 30
Pineapple Tomatoes tomato Mar 30 May 18 Aug 1 – Aug 11
Pink Delicious Tomatoes tomato Mar 30 May 18 Aug 6 – Aug 10
Pink Oxheart Tomatoes tomato Mar 30 May 18 Aug 6 – Aug 16
Pistou Basil herb Mar 30 May 18 Jul 17
Poblano Peppers pepper Mar 16 May 18 Jul 22
Ponderosa Red Beefsteak Tomatoes tomato Mar 30 May 18 Aug 6 – Aug 16
Powderpuff Aster Flowers flower Mar 23 May 11 Jul 25 – Aug 4
Pretty Purple Hot Peppers pepper Mar 16 May 18 Aug 16 – Sep 15
Purple Basil herb Mar 30 May 18 Jul 27 – Aug 11
Purple Beauty Sweet Peppers pepper Mar 16 May 18 Jul 27 – Aug 1
Purple Tiger Hot Peppers pepper Mar 16 May 18 Aug 16 – Aug 26
Red Burgundy Onions allium Mar 2 May 4 Aug 22 – Sep 1
Red Caribbean Habanero Hot Peppers pepper Mar 16 May 18 Aug 11 – Aug 31
Red Cayenne Hot Peppers pepper Mar 16 May 18 Aug 1 – Aug 11
Red Cherry Hot Peppers pepper Mar 16 May 18 Aug 1 – Aug 6
Red Mushroom Hot Peppers pepper Mar 16 May 18 Aug 1 – Aug 11
Red Pear Tomatoes tomato Mar 30 May 18 Jul 22 – Aug 1
Red Robin Tomatoes tomato Mar 30 May 18 Jul 12
Red Rubin Basil herb Mar 30 May 18 Jul 29
Red Scotch Bonnet Pepper pepper Mar 9 May 18 Aug 21 – Sep 15
Rio Grande Tomatoes tomato Mar 30 May 18 Aug 1 – Aug 6
Roma VF Tomatoes tomato Mar 30 May 18 Aug 1 – Aug 6
Roman Chamomile herb Mar 16 May 4 Perennial — see plant page
Rosemary herb Mar 2 May 18 Perennial — see plant page
Round Mauve Eggplant vegetable Mar 16 May 18 Aug 6 – Aug 16
Rue herb Mar 16 May 4 Perennial — see plant page
Rutgers Tomato tomato Mar 30 May 18 Jul 27 – Aug 6
Sakura Tomatoes tomato Mar 30 May 18 Jul 12 – Jul 17
San Marzano Tomatoes tomato Mar 16 May 18 Aug 4 – Aug 14
Santa Fe Grande Hot Peppers pepper Mar 16 May 18 Aug 1 – Aug 6
Serrano Peppers pepper Mar 16 May 18 Jul 27 – Aug 6
Shasta Daisy Flowers flower Mar 2 May 4 Perennial — see plant page
Shishito Peppers pepper Mar 23 May 25 Jul 24 – Jul 29
Single Mix China Aster Flowers flower Mar 23 May 11 Jul 20 – Jul 30
Soapwort flower Mar 23 May 11 Perennial — see plant page
Southport Red Globe Onions allium Mar 2 May 4 Sep 1
Southport White Globe Onions allium Mar 2 May 4 Sep 1
Spanish Sweet White Onions allium Mar 2 May 4 Aug 22 – Sep 1
Sparky Mix Marigolds flower Mar 30 May 4 Jun 28 – Jul 13
Spicy Globe Basil herb Mar 30 May 18 Jul 27
Stevia herb Mar 30 May 18 Perennial — see plant page
Stupice Tomatoes tomato Mar 30 May 18 Jul 12 – Jul 27
Sun Gold Tomatoes tomato Mar 30 May 18 Jul 14 – Jul 22
Sunbright Yellow Sweet Peppers pepper Mar 16 May 18 Aug 1 – Aug 6
SunChocola Tomatoes tomato Mar 30 May 18 Jul 17 – Jul 27
Sungella Tomatoes tomato Mar 30 May 18 Jul 17 – Jul 27
Sunray Tomatoes tomato Mar 30 May 18 Aug 1 – Aug 6
Sweet 100 Tomatoes tomato Mar 30 May 18 Jul 17 – Jul 22
Sweet Alyssum flower Mar 30 May 18 Jun 27 – Jul 12
Sweet Marjoram herb Mar 23 May 11 Jul 25 – Aug 9
Sweet Million Tomatoes tomato Mar 30 May 18 Jul 17 – Jul 22
Sweet Treats Tomatoes tomato Mar 30 May 18 Jul 22 – Aug 1
Sweet Woodruff herb Mar 16 May 4 Perennial — see plant page
Tabasco Hot Peppers pepper Mar 16 May 18 Aug 6 – Aug 16
Tall Utah 52-70 Celery vegetable Mar 2 May 18 Aug 26 – Sep 25
Tansy herb Mar 16 May 4 Perennial — see plant page
Tepin Hot Peppers pepper Mar 2 May 18 Sep 15 – Oct 2 (before frost)
Thai Basil herb Mar 30 May 18 Jul 17 – Jul 22
Thai Hot Peppers pepper Mar 16 May 18 Aug 1 – Aug 11
Thessaloniki Tomatoes tomato Mar 30 May 18 Jul 18 – Jul 29
Tigerella Tomatoes tomato Mar 30 May 18 Jul 12 – Jul 27
Tiny Tim Tomatoes tomato Mar 30 May 18 Jul 2 – Jul 12
Trinidad Moruga Scorpion peppers pepper Mar 2 May 18 Aug 6 – Sep 15
Tropical Milkweed Flowers flower Mar 23 May 11 Perennial — see plant page
Tumbling Tom Red Tomatoes tomato Mar 30 May 18 Jul 22 – Jul 27
Turkish Orange Eggplant vegetable Mar 16 May 18 Aug 11 – Aug 16
VR Moscow Tomatoes tomato Mar 30 May 18 Aug 6 – Aug 16
White Cherry Tomatoes tomato Mar 30 May 18 Jul 16 – Jul 27
White Cloud Sweet Peppers pepper Mar 16 May 18 Jul 27 – Aug 1
White Lisbon Bunching Onions allium Mar 16 May 4 Jul 3
Wormwood herb Mar 16 May 4 Perennial — see plant page
Yellow Beefsteak Tomatoes tomato Mar 30 May 18 Aug 1 – Aug 11
Yellow Jalapeno (Caloro) Hot Peppers pepper Mar 16 May 18 Aug 1 – Aug 11
Yellow Mushroom Hot Peppers pepper Mar 16 May 18 Aug 1 – Aug 11
Yellow Oxheart Tomatoes tomato Mar 30 May 18 Aug 5
Yellow Pear Tomatoes tomato Mar 30 May 18 Jul 27 – Aug 6
Yellow Scotch Bonnet Hot Peppers pepper Mar 16 May 18 Aug 16 – Sep 15
Yolo Wonder Sweet Peppers pepper Mar 16 May 18 Jul 27 – Aug 6

Plant Outside in March

Plant Type Action Target Date Harvest Window
All Year Round Lettuce lettuce Direct Sow Mar 28 May 31 – Jun 9
America Spinach lettuce Direct Sow Mar 28 May 10 – May 22
Astro Arugula lettuce Direct Sow Mar 28 Apr 18 – May 7
Black Seeded Simpson Lettuce lettuce Direct Sow Mar 28 May 12 – May 13
Blonde de Paris Lettuce lettuce Direct Sow Mar 28 May 17 – May 27
Bloomsdale Longstanding Spinach lettuce Direct Sow Mar 28 May 12 – May 19
Blue Curled Scotch Kale lettuce Direct Sow Mar 28 May 22 – May 27
Bok Choy lettuce Direct Sow Mar 28 May 12 – May 27
Broadleaf Classic Endive lettuce Direct Sow Mar 28 May 17 – May 27
Broadleaf Full Heart Batavian Endive lettuce Direct Sow Mar 28 Jun 21 – Jun 26
Broadleaf Sorrel lettuce Direct Sow Mar 28 Perennial — see plant page
Burgundy Boston Lettuce lettuce Direct Sow Mar 28 May 17 – May 22
Buttercrunch Lettuce lettuce Direct Sow Mar 28 May 13 – May 22
Butterhead Lettuce lettuce Direct Sow Mar 28 May 17 – Jun 1
Canary Yellow Swiss Chard lettuce Direct Sow Mar 28 May 17 – May 27
Candy Onion allium Plant Out Mar 30 Jun 28 – Jul 8
Catalogna Chicory lettuce Direct Sow Mar 28 May 22
Chinese Broccoli (Gai Lan) brassica Direct Sow Mar 28 Apr 27 – May 17
Crisphead Lettuce lettuce Direct Sow Mar 28 Jun 4 – Jun 11
Curly Kale lettuce Direct Sow Mar 28 May 22 – Jun 1
Dark Green Romaine Lettuce lettuce Direct Sow Mar 28 May 27 – Jun 6
Delicatesse Blue Kohlrabi brassica Direct Sow Mar 28 May 22 – May 27
Delicatesse White Kohlrabi brassica Direct Sow Mar 28 May 22 – May 27
Dutch Lamb's Lettuce lettuce Direct Sow Mar 28 May 7 – May 17
Dwarf Siberian Kale lettuce Direct Sow Mar 28 May 17 – May 22
Endive / Escarole lettuce Direct Sow Mar 28 May 12 – Jun 1
Florida Broadleaf Mustard lettuce Direct Sow Mar 28 May 7 – May 17
Fordhook Giant Swiss Chard lettuce Direct Sow Mar 28 May 12 – May 22
French Lamb's Lettuce lettuce Direct Sow Mar 28 May 7 – May 17
Georgia Southern Collard Greens lettuce Direct Sow Mar 28 Jun 6 – Jun 21
Giant Red Mustard lettuce Direct Sow Mar 28 May 12
Green Ice Lettuce lettuce Direct Sow Mar 28 May 12
Green Mountain Celtuce lettuce Direct Sow Mar 28 May 17
Green Onion allium Transplant Mar 30 Perennial — see plant page
Green Wave Mustard lettuce Direct Sow Mar 28 May 12
Hot Pink Swiss Chard lettuce Direct Sow Mar 28 May 17 – May 27
Iceberg Lettuce lettuce Direct Sow Mar 28 Jun 4 – Jun 11
Kagraner Sommer Lettuce lettuce Direct Sow Mar 28 May 25
Lacinato Kale lettuce Direct Sow Mar 28 May 27 – Jun 1
Large Leaf Sorrel lettuce Direct Sow Mar 28 Perennial — see plant page
Leaf Lettuce Mix lettuce Direct Sow Mar 28 May 12 – May 22
Little Gem Lettuce lettuce Direct Sow Mar 28 May 17 – May 23
Lollo Bionda Lettuce lettuce Direct Sow Mar 28 May 17 – May 27
Lollo Rossa Lettuce lettuce Direct Sow Mar 28 May 20 – May 23
Magenta Sunset Swiss Chard lettuce Direct Sow Mar 28 May 22 – May 27
Marvel of Four Seasons Lettuce lettuce Direct Sow Mar 28 May 12 – May 27
Matador Viking Spinach lettuce Direct Sow Mar 28 May 12 – May 15
Mesclun Mix lettuce Direct Sow Mar 28 Apr 18 – Apr 27
Mizuna lettuce Direct Sow Mar 28 May 7 – May 17
Monstrueux de Viroflay Spinach lettuce Direct Sow Mar 28 May 12 – May 17
Morris Heading Collard lettuce Direct Sow Mar 28 Jun 11 – Jun 16
Mustard Greens lettuce Direct Sow Mar 28 May 2 – May 17
Mâche (Corn Salad) lettuce Direct Sow Mar 28 May 27 – Jun 20
Napa Cabbage brassica Direct Sow Mar 28 May 27 – Jun 6
New Zealand Spinach lettuce Direct Sow Mar 28 May 17 – May 27
Noble Giant Spinach lettuce Direct Sow Mar 28 May 13 – May 17
Old Fashion Mustard lettuce Direct Sow Mar 28 May 12 – May 17
Orange Swiss Chard lettuce Direct Sow Mar 28 May 12 – May 22
Premier Kale lettuce Direct Sow Mar 28 May 17 – May 27
Radicchio lettuce Direct Sow Mar 28 May 27 – Jun 21
Rainbow Mix Swiss Chard lettuce Direct Sow Mar 28 May 17 – May 27
Rapini Broccoli Raab brassica Direct Sow Mar 28 Jun 1
Red Leaf Lettuce lettuce Direct Sow Mar 28 May 12 – May 22
Red Orach lettuce Direct Sow Mar 28 May 12
Red Romaine Lettuce lettuce Direct Sow Mar 28 May 27 – Jun 6
Red Russian Kale lettuce Direct Sow Mar 28 May 7 – May 17
Red Vein Sorrel lettuce Direct Sow Mar 28 Perennial — see plant page
Red-Stem Malabar Spinach lettuce Direct Sow Mar 28 May 22 – Jun 6
Romaine Lettuce lettuce Direct Sow Mar 28 Jun 1 – Jun 11
Ruby Red Swiss Chard lettuce Direct Sow Mar 28 May 22 – May 27
Salad Bowl Green Lettuce lettuce Direct Sow Mar 28 May 16 – May 17
Shungiku (Edible Chrysanthemum) lettuce Direct Sow Mar 28 May 7 – May 22
Summer Bibb Lettuce lettuce Direct Sow Mar 28 May 22 – May 27
Swiss Chard lettuce Direct Sow Mar 28 May 17 – May 27
Tango Lettuce lettuce Direct Sow Mar 28 May 13
Tatsoi lettuce Direct Sow Mar 28 Apr 22 – May 12
Tendergreen Mustard lettuce Direct Sow Mar 28 May 7 – May 17
Tom Thumb Lettuce lettuce Direct Sow Mar 28 May 17 – Jun 6
Très Fine Maraîchère Frisée lettuce Direct Sow Mar 28 May 27
Tuscany Black Kale lettuce Direct Sow Mar 28 May 27 – Jun 11
Vates Collard lettuce Direct Sow Mar 28 May 27 – Jun 11
Vates Kale lettuce Direct Sow Mar 28 May 17 – May 22
Verona Red Chicory lettuce Direct Sow Mar 28 Jun 21 – Jun 28
Vienna Purple Kohlrabi brassica Direct Sow Mar 28 May 22 – Jun 1
Vienna White Kohlrabi brassica Direct Sow Mar 28 May 22
White Boston Lettuce lettuce Direct Sow Mar 28 May 7 – May 17
Winner Kohlrabi brassica Direct Sow Mar 28 May 12 – May 17
Winter Density Lettuce lettuce Direct Sow Mar 28 May 21 – May 27
Winter Giant Spinach lettuce Direct Sow Mar 28 May 12 – May 17
Witloof White Chicory lettuce Direct Sow Mar 28 Jul 16 – Aug 5

Harvest in March

Nothing to harvest in March for Zone 5B.
Next window: April — 4 varieties, including Astro Arugula, Chinese Broccoli (Gai Lan), Mesclun Mix.

Key Tasks for March in Zone 5B

  1. 1 Start 257 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.
Back to full Zone 5B planting calendar
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