May is prime warm-season planting time in mild-winter zones, with soil temperatures rising and growth accelerating. This is the month to get main-season crops established outdoors, keep up with succession sowing, and set up supports before vines and tall plants take off. Watch moisture as days warm, mulch to hold soil moisture, and keep an eye out for the first big flush of pests as the garden hits its stride.

Indoors (fresh harvests):

  • Microgreens: peas, broccoli, sunflowers, arugula
  • Sprouts: alfalfa, broccoli, radish, mung
  • Herbs & greens under lights: chives, parsley, mint

Transplants to move outdoors (harden first): pepper, tomato, eggplant, melons, basil, okra — these should go out early May if not already in the ground

Crops that can be directly sown outdoors in May: beans, corn, cucumber, squash, melons, okra, sunflower, basil, dill, sweet potato slips. Succession sow beets, carrots, and radishes early in the month before heat sets in.

Cover crops: buckwheat, cowpeas, sorghum-sudangrass

Note: Warm-season crops should be going directly outdoors now, not starting under lights.

Tip: An Olympia, WA zone 8 is very different from a Jackson, MS zone 8. Consider checking with your state Extension Service office for more specific recommendations and guidelines.

Use your USDA zone as a guide. Microclimates matter — coastal/urban spots run warmer; high elevation runs colder.

50 100 true //store.trueleafmarket.com/cdn/shop/t/54/assets/review-fallback.json?v=33078429469613971781712858278
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376 Items
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Mustard Seeds - Small Gai Choi - Microgreens Seeds
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Mustard Seeds - Small Gai Choi - Microgreens Seeds
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Turnip Seeds - Nozawana - Microgreens Seeds
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Turnip Seeds - Nozawana - Microgreens Seeds
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Radish Seeds - Nerima - Microgreens
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Radish Seeds - Nerima - Microgreens
Starting at $19.03
Chinese Cabbage Seeds - Vitaminna - Microgreens Seeds
-32%
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Chinese Cabbage Seeds - Vitaminna - Microgreens Seeds
Starting at $10.17
Turnip Seeds - Sugukina - Microgreens Seeds
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Turnip Seeds - Sugukina - Microgreens Seeds
Starting at $14.24
Turnip Seeds - Tennouji Kabura - Microgreens Seeds
-47%
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Turnip Seeds - Tennouji Kabura - Microgreens Seeds
Starting at $8.00
Chinese Mustard Seeds - Shuidong - Microgreens Seeds
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Chinese Mustard Seeds - Shuidong - Microgreens Seeds
Starting at $13.94
Radish Seeds - Shirahime Hatsuka Daikon - Clearance Seeds
-73%
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Radish Seeds - Shirahime Hatsuka Daikon - Clearance Seeds
Starting at $40.00
Mustard Seeds - Red Capital - Microgreens Seeds
-47%
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Mustard Seeds - Red Capital - Microgreens Seeds
Starting at $10.17
Minute Soil+ - Amended Compressed Coco Coir PucksMinute Soil+ - Amended Compressed Coco Coir Pucks
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Minute Soil+ - Amended Compressed Coco Coir Pucks
$58.22
Mustard Seeds - Golden Streak - Microgreens SeedsMustard Seeds - Golden Streak - Microgreens Seeds
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Mustard Seeds - Golden Streak - Microgreens Seeds
Starting at $17.62
Mustard Seeds - Tsa Tsai Round - Microgreens Seeds
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Starting at $21.82
Radish -  Red Rat's Tail - Microgreen SeedsRadish -  Red Rat's Tail - Microgreen Seeds
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Starting at $2.79
Radish - Pink Summercicle (Organic) - Microgreens SeedsRadish - Pink Summercicle (Organic) - Microgreens Seeds
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Starting at $16.53
Aquatree Garden Indoor Growing SystemAquatree Garden Indoor Growing System
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Aquatree Tower - Indoor Hydroponic Vertical GardenAquatree Tower - Indoor Hydroponic Vertical Garden
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Instafarm - Automatic Microgreens Kitchen ApplianceInstafarm - Automatic Microgreens Kitchen Appliance
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Chamomile Seeds - German - Clearance Seeds
Starting at $8.13
Parsley Seeds - Plain or Single (Organic) - Clearance Seeds
Starting at $3.00
Carrot Seeds - Little Finger - Clearance Seeds
Starting at $5.00
Kale Seeds - Garden Blend - Clearance Seeds
Starting at $8.95
Turnip Seeds - Sugukina - Clearance Seeds
Starting at $15.33
Shiso (Perilla) - Green (Organic) Microgreens Seeds
Starting at $18.60
Orach Seeds - Red (Organic) - Microgreens Seeds
Starting at $21.64
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