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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2493 Items
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Corn Seeds - Sweet - Honey Select Hybridmid size pouch type seed packaging for - Corn Sweet Honey Select Hybrid
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Pepper Seeds - Sweet - Gypsy HybridPepper Seeds - Sweet - Gypsy Hybrid
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Eggplant Seeds - Long Purplemid size pouch type seed packaging for - Eggplant Long Purple
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Onion Seeds - Short - Yellow Granex PRR HybridOnion Seeds - Short - Yellow Granex PRR Hybrid
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Squash Seeds - Winter - Table King Bush Acornmid size pouch type seed packaging for - Squash Winter Table King Bush Acorn
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Squash Seeds - Winter - Japanese Red Kuri (Uchiki Kuri)Squash Seeds - Winter - Japanese Red Kuri (Uchiki Kuri)
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Tomato Seeds - Slicing - Heirloom Rainbow Blend (Organic)mid size pouch type seed packaging for - Tomato Slicing Heirloom Rainbow Blend Organic
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Lettuce Seeds - Leaf - Lollo Rossomid size pouch type seed packaging for - Lettuce Leaf Lollo Rosso
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Pepper Seeds - Hot - Fresno Chilismall size packet type seed packaging for - Pepper Hot Fresno Chili
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Watermelon Seeds - Picnic - Moon & Stars (Organic)mid size pouch type seed packaging for - Watermelon Picnic Moon & Stars Organic
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Gourds Seeds - Large Mixmid size pouch type seed packaging for - Gourds Large Mix
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Hibiscus Seeds - Luna SeriesHibiscus Seeds - Luna Series
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Pak Choi Seeds - Extra Dwarfmid size pouch type seed packaging for - Pak Choi Extra Dwarf
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Bean Seeds - Bush - Provider (Organic)
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