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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1006 Items
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Tomato Seeds - Slicing - Red Russiansmall size packet type seed packaging for - Tomato Slicing Red Russian
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Lettuce Seeds - Butterhead & Bibb MixLettuce Seeds - Butterhead & Bibb Mix
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Corn Seeds - Sweet - Honey Select Hybrid (treated)mid size pouch type seed packaging for - Corn Sweet Honey Select Hybrid treated
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Tomato Seeds - Paste - Rio Fuegosmall size packet type seed packaging for - Tomato Paste Rio Fuego
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Tomato Seeds - Salad - Super Siouxmid size pouch type seed packaging for - Tomato Salad Super Sioux
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Mustard Seeds - Tendergreen - Organicsmall size packet type seed packaging for - Mustard Tendergreen Organic
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Pak Choi Seeds - Nabai Spring - Hybridmid size pouch type seed packaging for - Pak Choi Nabai Spring Hybrid
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Tomato Seeds - Slicing - Mountain Delight Hybridmid size pouch type seed packaging for - Tomato Slicing Mountain Delight Hybrid
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Mustard Seeds - Serifon (Suehlihung)Mustard Seeds - Serifon (Suehlihung)
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Tomato Seeds - Cherry - Firefly Hybridmid size pouch type seed packaging for - Tomato Cherry Firefly Hybrid
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Tomato Seeds - Slicing - Ukrainian Purplemid size pouch type seed packaging for - Tomato Slicing Ukrainian Purple
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Pak Choi Seeds - Da Hong Winter Hybridmid size pouch type seed packaging for - Pak Choi Da Hong Winter Hybrid
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Mustard Ruby Streakmid size pouch type seed packaging for - Mustard Ruby Streak
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Lettuce Seeds, Leaf - Sandy AAS - Organicsmall size packet type seed packaging for - Lettuce Leaf Sandy AAS Organic
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Lettuce Seeds - Arianna - Organicsmall size packet type seed packaging for - Lettuce Arianna Organic
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