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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2858 Items
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Cucumber Seeds - Spacemaster 80mid size pouch type seed packaging for - Cucumber Spacemaster 80
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Mustard - Brown (Organic) - Sprouting SeedsMustard - Brown (Organic) - Sprouting Seeds
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Squash Seeds - Winter - Pink Banana JumboSquash Seeds - Winter - Pink Banana Jumbo
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Tobacco Seeds - Cuban Criollo 98
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Tomato Seeds - Slicing - Brandywine Pink (Organic)Tomato Seeds - Slicing - Brandywine Pink (Organic)
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The Organic Wheatgrass Growing KitThe Organic Wheatgrass Growing Kit
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Grow and Store Garden Seeds 16 VarietyGrow and Store Garden Seeds 16 Variety
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Pepper Seeds - Sweet - Hungarian Yellow Wax Sweetmid size pouch type seed packaging for - Pepper Sweet Hungarian Yellow Wax Sweet
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Mustard Seeds - Mizunamid size pouch type seed packaging for - Mustard Mizuna
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Pea Seeds - Perfection Dark Seededsmall size packet type seed packaging for - Pea Perfection Darked
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Shiso Herb Seeds (Perilla) - GreenShiso Herb Seeds (Perilla) - Green
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Radish Seeds - White Iciclemid size pouch type seed packaging for - Radish White Icicle
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