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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697 Items
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Gourd Seeds - Crown of Thorns ShenotGourd Seeds - Crown of Thorns Shenot
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Lentil Seeds - Black (Organic)Lentil Seeds - Black (Organic)
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custom box packaging for Seed Starter Kit - Sweet Pepper
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$16.26 $24.99
Beet Seeds - Ruby Queen (Organic)mid size pouch type seed packaging for - Beet Ruby Queen Organic
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Corn Seeds - Golden Bantam 8mid size pouch type seed packaging for - Corn Golden Bantam 8
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Starting at $5.89
Gourd Seeds - Bitter Mara Hybrid
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Parsley Seeds - Evergreensmall size packet type seed packaging for - Parsley Evergreen
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Starting at $2.99
Seasonal Seed Assortment - SummerSeasonal Seed Assortment - Summer
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1020 Blackout Humidity Dome1020 Blackout Humidity Dome
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Coco Coir Fiber - 10x10 Tray Hydroponic Grow Mats
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Starting at $15.42
Parsley Seeds - Hamburg Rootedsmall size packet type seed packaging for - Parsley Hamburg Rooted
-0
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Parsley Seeds - Hamburg Rooted
Starting at $2.99
Gourd Seeds - Martinhouse Bottlesmall size packet type seed packaging for - Gourd Martinhouse Bottle
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Tomato Seeds - Cherry - Brad's Atomic Grape
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Pea Seeds - Parsley - Microgreens SeedsPea Seeds - Parsley - Microgreens Seeds
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Nasturtium Seeds - Jewel Mix (Organic)Nasturtium Seeds - Jewel Mix (Organic)
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Starting at $11.39
Turnip Seeds - Snowballsmall size packet type seed packaging for - Turnip Snowball
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Mustard - Japanese Komatsuna - Microgreens SeedsMustard - Japanese Komatsuna - Microgreens Seeds
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Bean Seeds - Bush - Phenomenal (Cowpeas)mid size pouch type seed packaging for - Zinnia Magellan Series Orange
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Starting at $3.62
Mixed Greens Seeds - Braising Mixmid size pouch type seed packaging for - Zinnia Magellan Series Orange
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Wheat Seeds - Yamhillmid size pouch type seed packaging for - Wheat Yamhill
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Salad Burnet Seedssmall size packet type seed packaging for - Salad Burnet
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Spinach - Winter Giant - Microgreens SeedsSpinach - Winter Giant - Microgreens Seeds
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Pepper Seeds - Sweet & Spicy Mix
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Onion Sets - Snowball White
$6.48 $12.95
Cotton Seeds - American Upland (Treated)
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Kohlrabi Seeds - Superschmelz Giant White
Starting at $3.29
Seed Potatoes - Purple Majesty (Organic)
Starting at $9.78
Sunflower Seeds - Midnight Rouge
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Coffee Seeds - Coffea Arabica Nana
Starting at $4.39
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