Skip to main content
Get Started
Zone 6B — March

What to Plant in March in Zone 6B

March in Zone 6B: 139 crops to start indoors, 106 to plant or direct sow outside, and 0 entering harvest window. Last frost averages April 23. Reference city: Richmond, VA.
Updated May 13, 2026 · Frost data from NOAA 1991-2020 Climate Normals
139 Start Indoors
106 Plant Outside
0 Harvest
Frost risk: High

Frost risk is still high in Zone 6B. The last spring frost typically lands on April 23, with the earliest plausible clearance around April 9. Hold tender crops indoors a while longer.

See full Zone 6B frost outlook →

Start Indoors in March

Plant Type Start Indoors Transplant Outside Harvest Window
Alaska Early Pea legume Mar 18 Mar 25 May 19 – May 24
Black Salsify root vegetable Mar 11 Mar 18 Perennial — see plant page
Broad Windsor Fava Bean legume Mar 18 Mar 25 Jun 8 – Jun 18
Caraway herb Mar 18 Mar 25 Perennial — see plant page
Cascadia Sugar Snap Pea legume Mar 18 Mar 25 May 29 – May 31
Charleston Wakefield Cabbage brassica Mar 11 Mar 25 Jun 8
Chervil herb Mar 18 Mar 25 Apr 29 – May 9
Crimson Cherry Rhubarb Root vegetable Mar 11 Mar 18 Perennial — see plant page
Dandelion herb Mar 18 Mar 25 Perennial — see plant page
Delicatesse Blue Kohlrabi brassica Mar 18 Mar 25 May 19 – May 24
Delicatesse White Kohlrabi brassica Mar 18 Mar 25 May 19 – May 24
Dutch Yellow Shallots allium Mar 11 Mar 18 Jun 16 – Jul 16
Early Jersey Wakefield Cabbage brassica Mar 11 Mar 25 May 29 – Jun 8
French Red Shallots allium Mar 11 Mar 18 Jun 16 – Jul 16
Giant Imperial Mix Larkspur Flowers flower Mar 18 Mar 25 Jul 3 – Jul 23
Green Arrow Pea legume Mar 18 Mar 25 May 29 – Jun 3
Hard Red Wheat Cover Crop cover crop Mar 18 Mar 25 Jun 8 – Jun 28
Holland Red Shallots allium Mar 11 Mar 18 Jun 16 – Jul 16
Little Marvel Pea legume Mar 18 Mar 25 May 24 – May 27
Mammoth Melting Sugar Snow Pea legume Mar 18 Mar 25 Jun 1 – Jun 7
Michihili Cabbage brassica Mar 11 Mar 25 Jun 3
Oregon Giant Snow Pea legume Mar 18 Mar 25 Jun 3 – Jun 7
Oregon Sugar Pod Snow Pea legume Mar 18 Mar 25 May 24 – Jun 1
Progress No. 9 Shelling Pea legume Mar 18 Mar 25 May 22 – May 26
Red Acre Cabbage brassica Mar 11 Mar 25 Jun 8 – Jun 13
Sugar Ann Snap Pea legume Mar 18 Mar 25 May 16 – May 20
Tatsoi lettuce Mar 4 Mar 18 Apr 12 – May 2
Vienna Purple Kohlrabi brassica Mar 18 Mar 25 May 19 – May 29
Vienna White Kohlrabi brassica Mar 18 Mar 25 May 29
Wando Pea legume Mar 18 Mar 25 May 27 – Jun 1
Alexandria Alpine Strawberry berry Mar 11 Apr 22 Perennial — see plant page
All Season Cabbage brassica Mar 18 Apr 1 Jun 10 – Jun 20
All Year Round Cauliflower brassica Mar 18 Apr 1 Jun 5
Anaheim Peppers pepper Mar 25 Apr 29 Jul 15 – Jul 23
Angelica herb Mar 18 Apr 15 Aug 13 – Sep 12
Baby's Breath Flowers flower Mar 25 Apr 15 Perennial — see plant page
Barletta, Pearly White Onions root vegetable Mar 18 Apr 15 Jun 29 – Jul 4
Bhut Jolokia Ghost Pepper pepper Mar 25 Apr 29 Jul 28 – Aug 27
Big Jim Hatch Chile pepper Mar 25 Apr 29 Jul 8 – Jul 13
Black Beauty Zucchini squash Mar 29 Apr 26 Jun 10 – Jun 20
Blue Flax Flowers flower Mar 25 Apr 1 Perennial — see plant page
Bouquet Dill herb Mar 25 Apr 1 May 21 – Jun 5
Brilliant Celeriac root vegetable Mar 4 Apr 15 Aug 3 – Aug 13
Broadleaf Sage Herb herb Mar 25 Apr 22 Perennial — see plant page
Broccolini brassica Mar 25 Apr 29 Jun 18 – Jul 8
Brunswick Cabbage brassica Mar 18 Apr 1 Jun 20 – Jun 30
Brussels Sprouts brassica Mar 25 Apr 29 Jul 23 – Aug 17
Calabrese Broccoli brassica Mar 18 Apr 1 Jun 5
Cardoon (Purple Artichoke Thistle) vegetable Mar 25 Apr 22 Perennial — see plant page
Carentan Leeks allium Mar 11 Apr 1 Jun 30 – Jul 20
Caribbean Red Scotch Bonnet Pepper pepper Mar 25 Apr 29 Aug 2 – Aug 27
Carolina Reaper peppers pepper Mar 18 Apr 29 Jul 28 – Aug 27
Catmint herb Mar 25 Apr 15 Perennial — see plant page
Cayenne Peppers pepper Mar 25 Apr 29 Jul 23 – Aug 2
Cherry Bomb peppers pepper Mar 18 Apr 29 Jul 13 – Jul 18
Chinese Forget-Me-Not Flowers flower Mar 25 Apr 1 Jun 5 – Jun 25
Copenhagen Cabbage brassica Mar 18 Apr 1 Jun 5
Corno di Toro Pepper pepper Mar 25 Apr 29 Jul 13 – Jul 18
Crackerjack Mix Marigolds flower Mar 25 Apr 15 Jun 14 – Jun 29
Crimson Forest Bunching Onions root vegetable Mar 25 Apr 15 Jun 14
Curly Parsley herb Mar 11 Apr 15 Jun 24 – Jul 4
Daikon Radishes root vegetable Mar 25 Apr 1 May 16 – May 26
Danish Ballhead Cabbage brassica Mar 18 Apr 1 Jul 10 – Jul 20
Dark Green Italian Giant Parsley herb Mar 25 Apr 1 May 31 – Jun 15
Datil peppers pepper Mar 18 Apr 29 Jul 28 – Aug 17
Di Cicco Broccoli brassica Mar 18 Apr 1 Jun 5
Drumhead Cabbage brassica Mar 18 Apr 1 Jun 30 – Jul 10
Dukat Dill herb Mar 25 Apr 1 May 11 – May 21
Early Purple Broccoli brassica Mar 18 Apr 1 Jun 5
English Lavender Herb herb Mar 25 Apr 29 Perennial — see plant page
English White Daisy Flowers flower Mar 18 Apr 15 Perennial — see plant page
Evergreen Bunching Onions root vegetable Mar 25 Apr 15 Aug 13
Evergreen Parsley herb Mar 25 Apr 1 Jun 10 – Jun 25
Fenugreek herb Mar 25 Apr 1 May 6 – May 21
Flat-Leaf Parsley herb Mar 11 Apr 15 Jun 24 – Jul 14
Fresno Peppers pepper Mar 25 Apr 29 Jul 13 – Jul 18
Giant Maximum Mix Snapdragon Flowers flower Mar 18 Apr 15 Jul 4 – Jul 19
Giant Musselburgh Leeks allium Mar 11 Apr 1 Jul 10 – Jul 15
Glory of Enkhuizen Cabbage brassica Mar 18 Apr 1 Jun 30
Golden Acre Cabbage brassica Mar 18 Apr 1 Jun 5
Golden Celery vegetable Mar 18 Apr 22 Jul 16 – Jul 26
Grano Red Onions root vegetable Mar 18 Apr 15 Aug 13
Grano White Onions root vegetable Mar 18 Apr 15 Aug 13
Green Cabbage brassica Mar 25 Apr 29 Jun 28 – Aug 7
Green Globe Artichoke vegetable Mar 25 Apr 29 Perennial — see plant page
Hamburg Rooted Parsley herb Mar 25 Apr 1 Jun 30 – Jul 20
Hungarian Hot Wax Pepper pepper Mar 25 Apr 29 Jul 3 – Jul 13
Igloo Cauliflower brassica Mar 18 Apr 1 Jun 5 – Jun 10
Imperial Star Artichoke vegetable Mar 11 Apr 15 Jul 14 – Jul 24
Isis Candy cherry tomatoes tomato Mar 25 Apr 22 Jul 1 – Jul 11
Italian Oregano herb Mar 25 Apr 15 Perennial — see plant page
Jalapeño Peppers pepper Mar 25 Apr 29 Jul 3 – Jul 13
Kellogg's Breakfast tomatoes tomato Mar 25 Apr 22 Jul 6 – Jul 16
Lemongrass Herb herb Mar 25 Apr 29 Perennial — see plant page
Mammoth Dill herb Mar 25 Apr 1 May 16 – Jun 5
Mary Washington Asparagus vegetable Mar 25 Apr 1 Perennial — see plant page
Matt's Wild Cherry tomatoes tomato Mar 25 Apr 22 Jun 16 – Jun 26
Medium Red Clover Cover Crop cover crop Mar 25 Apr 1 May 31 – Jun 15
Millennium Asparagus vegetable Mar 25 Apr 1 Perennial — see plant page
Mrs. Burns Lemon Basil herb Mar 25 Apr 22 Jun 21 – Jul 1
OG American Flag Leeks allium Mar 11 Apr 1 Jun 30 – Jul 10
Ox-Eye Daisy Flowers flower Mar 18 Apr 15 Perennial — see plant page
Paul Robeson tomatoes tomato Mar 25 Apr 22 Jul 1 – Jul 16
Pinkeye Purple Hull Cowpea legume Mar 4 Apr 29 Jun 28 – Jul 8
Poblano Peppers pepper Mar 25 Apr 29 Jul 3 – Jul 13
Purple Passion Asparagus vegetable Mar 25 Apr 1 Perennial — see plant page
Rapeseed Cover Crop cover crop Mar 25 Apr 1 May 16 – Jun 10
Rapini Broccoli Raab brassica Mar 25 Apr 1 Jun 5
Red Burgundy Onions root vegetable Mar 18 Apr 15 Aug 3 – Aug 13
Red Cabbage brassica Mar 25 Apr 29 Jul 8 – Aug 17
Roman Chamomile herb Mar 25 Apr 15 Perennial — see plant page
Romanesco brassica Mar 25 Apr 29 Jul 13 – Aug 7
Rue herb Mar 25 Apr 15 Perennial — see plant page
Savoy Perfection Cabbage brassica Mar 18 Apr 1 Jun 30 – Jul 5
Scarlet Flax Flowers flower Mar 25 Apr 1 May 26 – Jun 10
Serrano Peppers pepper Mar 25 Apr 29 Jul 8 – Jul 18
Shasta Daisy Flowers flower Mar 11 Apr 15 Perennial — see plant page
Shungiku (Edible Chrysanthemum) vegetable Mar 25 Apr 1 May 11 – May 26
Snow Crown Cauliflower brassica Mar 25 Apr 29 Jun 18 – Jun 28
Snowball Self-Blanche Cauliflower brassica Mar 18 Apr 1 Jun 5
Southport Red Globe Onions root vegetable Mar 18 Apr 15 Aug 13
Southport White Globe Onions root vegetable Mar 18 Apr 15 Aug 13
Spanish Sweet White Onions root vegetable Mar 18 Apr 15 Aug 3 – Aug 13
Sparky Mix Marigolds flower Mar 25 Apr 15 Jun 9 – Jun 24
Sweet Marjoram herb Mar 25 Apr 22 Jul 6 – Jul 21
Sweet Woodruff herb Mar 25 Apr 15 Perennial — see plant page
Tansy herb Mar 25 Apr 15 Perennial — see plant page
Tendercrisp Celery vegetable Mar 18 Apr 22 Jul 16 – Jul 31
Thai Hot Peppers pepper Mar 25 Apr 29 Jul 13 – Jul 23
Thyme herb Mar 18 Apr 15 Perennial — see plant page
Trinidad Moruga Scorpion peppers pepper Mar 18 Apr 29 Jul 18 – Aug 27
Tropical Milkweed Flowers flower Mar 25 Apr 22 Perennial — see plant page
Victoria Rhubarb vegetable Mar 11 Apr 1 Perennial — see plant page
Violetta Purple Cauliflower brassica Mar 18 Apr 1 Jun 5
Waltham 29 Broccoli brassica Mar 25 Apr 29 Jul 13 – Jul 28
White Lisbon Bunching Onions root vegetable Mar 25 Apr 15 Jun 19
Wormwood herb Mar 25 Apr 15 Perennial — see plant page
Yellow Sweet Blossom Clover Cover Crop cover crop Mar 25 Apr 1 May 31 – Jun 30
Habanero Pepper pepper Mar 25 May 6 Aug 4 – Sep 3

Plant Outside in March

Plant Type Action Target Date Harvest Window
Alaska Early Pea legume Transplant Mar 25 May 19 – May 24
All Year Round lettuce Direct Sow Mar 21 May 24 – Jun 2
America lettuce Direct Sow Mar 21 May 3 – May 15
Astro Arugula lettuce Direct Sow Mar 21 Apr 11 – Apr 30
Black Salsify root vegetable Transplant Mar 18 Perennial — see plant page
Black Seeded Simpson lettuce Direct Sow Mar 21 May 5 – May 6
Blonde de Paris lettuce Direct Sow Mar 21 May 10 – May 20
Bloomsdale Longstanding Spinach lettuce Direct Sow Mar 21 May 5 – May 12
Blue Curled Scotch lettuce Direct Sow Mar 21 May 15 – May 20
Bok Choy lettuce Direct Sow Mar 21 May 5 – May 20
Broad Windsor Fava Bean legume Transplant Mar 25 Jun 8 – Jun 18
Broadleaf Classic lettuce Direct Sow Mar 21 May 10 – May 20
Broadleaf Sorrel lettuce Direct Sow Mar 21 Perennial — see plant page
Burgundy Boston lettuce Direct Sow Mar 21 May 10 – May 15
Buttercrunch lettuce Direct Sow Mar 21 May 6 – May 15
Butterhead Lettuce lettuce Direct Sow Mar 21 May 10 – May 25
Canary Yellow lettuce Direct Sow Mar 21 May 10 – May 20
Caraway herb Transplant Mar 25 Perennial — see plant page
Cascadia Sugar Snap Pea legume Transplant Mar 25 May 29 – May 31
Charleston Wakefield Cabbage brassica Transplant Mar 25 Jun 8
Chervil herb Transplant Mar 25 Apr 29 – May 9
Chinese Broccoli (Gai Lan) brassica Direct Sow Mar 21 Apr 20 – May 10
Crimson Cherry Rhubarb Root vegetable Transplant Mar 18 Perennial — see plant page
Crisphead lettuce Direct Sow Mar 21 May 28 – Jun 4
Curly Kale lettuce Direct Sow Mar 21 May 15 – May 25
Dandelion herb Transplant Mar 25 Perennial — see plant page
Dark Green Romaine lettuce Direct Sow Mar 21 May 20 – May 30
Delicatesse Blue Kohlrabi brassica Transplant Mar 25 May 19 – May 24
Delicatesse White Kohlrabi brassica Transplant Mar 25 May 19 – May 24
Dutch Lamb's Lettuce lettuce Direct Sow Mar 21 Apr 30 – May 10
Dutch Yellow Shallots allium Transplant Mar 18 Jun 16 – Jul 16
Early Jersey Wakefield Cabbage brassica Transplant Mar 25 May 29 – Jun 8
Endive / Escarole lettuce Direct Sow Mar 21 May 5 – May 25
Florida Broadleaf lettuce Direct Sow Mar 21 Apr 30 – May 10
Fordhook Giant lettuce Direct Sow Mar 21 May 5 – May 15
French Lamb's Lettuce lettuce Direct Sow Mar 21 Apr 30 – May 10
French Red Shallots allium Transplant Mar 18 Jun 16 – Jul 16
Full Heart Batavian lettuce Direct Sow Mar 21 Jun 14 – Jun 19
Georgia Southern Collard Greens lettuce Direct Sow Mar 21 May 20 – Jun 9
Giant Imperial Mix Larkspur Flowers flower Transplant Mar 25 Jul 3 – Jul 23
Giant Red lettuce Direct Sow Mar 21 May 5
Green Arrow Pea legume Transplant Mar 25 May 29 – Jun 3
Green Ice lettuce Direct Sow Mar 21 May 5
Green Wave lettuce Direct Sow Mar 21 May 5
Hard Red Wheat Cover Crop cover crop Transplant Mar 25 Jun 8 – Jun 28
Holland Red Shallots allium Transplant Mar 18 Jun 16 – Jul 16
Hot Pink lettuce Direct Sow Mar 21 May 10 – May 20
Iceberg lettuce Direct Sow Mar 21 May 28 – Jun 4
Kagraner Sommer lettuce Direct Sow Mar 21 May 10 – May 18
Lacinato Kale lettuce Direct Sow Mar 21 May 20 – May 25
Large Leaf Sorrel lettuce Direct Sow Mar 21 Perennial — see plant page
Leaf Lettuce Mix lettuce Direct Sow Mar 21 May 5 – May 15
Little Gem lettuce Direct Sow Mar 21 May 10 – May 16
Little Marvel Pea legume Transplant Mar 25 May 24 – May 27
Lollo Bionda lettuce Direct Sow Mar 21 May 10 – May 20
Lollo Rossa lettuce Direct Sow Mar 21 May 13 – May 16
Magenta Sunset lettuce Direct Sow Mar 21 May 15 – May 20
Mammoth Melting Sugar Snow Pea legume Transplant Mar 25 Jun 1 – Jun 7
Marvel of Four Seasons lettuce Direct Sow Mar 21 May 5 – May 20
Matador Viking lettuce Direct Sow Mar 21 May 5 – May 8
Mesclun Mix lettuce Direct Sow Mar 21 Apr 11 – Apr 20
Michihili Cabbage brassica Transplant Mar 25 Jun 3
Mizuna lettuce Direct Sow Mar 21 Apr 30 – May 10
Monstrueux de Viroflay lettuce Direct Sow Mar 21 May 5 – May 10
Morris Heading lettuce Direct Sow Mar 21 Jun 4 – Jun 9
Mustard Greens lettuce Direct Sow Mar 21 Apr 25 – May 10
Mâche (Corn Salad) lettuce Direct Sow Mar 21 May 20 – Jun 13
Napa Cabbage brassica Direct Sow Mar 21 May 30 – Jun 19
Noble Giant lettuce Direct Sow Mar 21 May 6 – May 10
Old Fashion lettuce Direct Sow Mar 21 May 5 – May 10
Orange lettuce Direct Sow Mar 21 May 5 – May 15
Oregon Giant Snow Pea legume Transplant Mar 25 Jun 3 – Jun 7
Oregon Sugar Pod Snow Pea legume Transplant Mar 25 May 24 – Jun 1
Premier lettuce Direct Sow Mar 21 May 10 – May 20
Progress No. 9 Shelling Pea legume Transplant Mar 25 May 22 – May 26
Radicchio lettuce Direct Sow Mar 21 May 20 – Jun 14
Rainbow Mix lettuce Direct Sow Mar 21 May 10 – May 20
Red Acre Cabbage brassica Transplant Mar 25 Jun 8 – Jun 13
Red Leaf Lettuce lettuce Direct Sow Mar 21 May 5 – May 15
Red Romaine lettuce Direct Sow Mar 21 May 20 – May 30
Red Russian Kale lettuce Direct Sow Mar 21 May 10 – May 20
Red Vein Sorrel lettuce Direct Sow Mar 21 Perennial — see plant page
Romaine Lettuce lettuce Direct Sow Mar 21 May 25 – Jun 4
Ruby Red lettuce Direct Sow Mar 21 May 15 – May 20
Salad Bowl Green lettuce Direct Sow Mar 21 May 9 – May 10
Siberian Dwarf lettuce Direct Sow Mar 21 May 10 – May 15
Sugar Ann Snap Pea legume Transplant Mar 25 May 16 – May 20
Summer Bibb lettuce Direct Sow Mar 21 May 15 – May 20
Swiss Chard lettuce Direct Sow Mar 21 May 10 – May 20
Tango lettuce Direct Sow Mar 21 Apr 22 – Apr 30
Tatsoi lettuce Transplant Mar 18 Apr 12 – May 2
Tendergreen lettuce Direct Sow Mar 21 Apr 30 – May 10
Texas 1015Y SuperSweet Onion root vegetable Transplant Mar 18 Jul 1 – Jul 11
Tom Thumb lettuce Direct Sow Mar 21 May 10 – May 30
Tuscany Black lettuce Direct Sow Mar 21 May 20 – Jun 4
Vates lettuce Direct Sow Mar 21 May 10 – May 15
Vates lettuce Direct Sow Mar 21 May 20 – Jun 4
Verona Red lettuce Direct Sow Mar 21 Jun 14 – Jun 21
Vienna Purple Kohlrabi brassica Transplant Mar 25 May 19 – May 29
Vienna White Kohlrabi brassica Transplant Mar 25 May 29
Wando Pea legume Transplant Mar 25 May 27 – Jun 1
White Boston lettuce Direct Sow Mar 21 Apr 30 – May 10
Winner Kohlrabi brassica Direct Sow Mar 21 May 5 – May 10
Winter Density lettuce Direct Sow Mar 21 May 14 – May 20
Winter Giant lettuce Direct Sow Mar 21 May 5 – May 10
Witloof White lettuce Direct Sow Mar 21 Jul 5 – Jul 28

Harvest in March

No crops entering harvest in March for Zone 6B.

Key Tasks for March in Zone 6B

  1. 1 Start 139 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 6B planting calendar
February March in Zone 6B April

Get a Personalized March Calendar

SoilStack builds your exact planting schedule from your ZIP code — day-by-day tasks, weather prompts, and harvest tracking included.

Start Your Free Garden Calendar