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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4042 Items
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Collards - Vates - Microgreens SeedsCollards - Vates - Microgreens Seeds
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Radish Korean Bora King Hybrid mid size pouch type seed packaging for - Radish Korean Bora King Hybrid
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Cilantro Seeds - Leisure - (aka) Chinese Leisure ParsleyCilantro Seeds - Leisure - (aka) Chinese Leisure Parsley
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Lettuce Seeds - Leaf - Green Icesmall size packet type seed packaging for - Lettuce Leaf Green Ice
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Fenugreek Seeds - MicrogreensFenugreek Seeds - Microgreens
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Pepper Seeds - Hot - Korean - Gochujang King - Hybrid
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Tomato Seeds - Slicing - Homesteadsmall size packet type seed packaging for - Tomato Slicing Homestead
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Tomato Seeds - Slicing - Watermelon Beefsteak (Organic)small size packet type seed packaging for - Tomato Slicing Watermelon Beefsteak Organic
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Aster Seeds - Crego Giant Mixturemid size pouch type seed packaging for - Aster Crego Giant Mixture
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Carrot Seeds - Bambino (Organic)
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Pansy Seeds - Cool Wave SeriesPansy Seeds - Cool Wave Series
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Marigold (Signata) Seeds - Gem SeriesMarigold (Signata) Seeds - Gem Series
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Arugula Microgreens SeedsArugula Microgreens Seeds
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Sunflower Seeds - Mexicansmall size packet type seed packaging for - Sunflower Mexican
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Starter Organic Wheatgrass Growing KitStarter Organic Wheatgrass Growing Kit
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Bells of Ireland Seedsmid size pouch type seed packaging for - Bells of Ireland
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Tomato Seeds - Paste - Giant Garden Paste Hybridmid size pouch type seed packaging for - Tomato Paste Giant Garden Paste Hybrid
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Sweet William Seeds - Double Mixturemid size pouch type seed packaging for - Sweet William Double Mixture
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Lettuce Seeds - Summer Bibb (Organic)Lettuce Seeds - Summer Bibb (Organic)
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Melon Seeds - Honeydew - Green Flesh (Organic)small size packet type seed packaging for - Melon Honeydew Green Flesh Organic
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Bean Seeds - Bush - Cannellini (Organic)small size packet type seed packaging for - Bean Bush Cannellini Organic
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Pepper Seeds - Hot - Santa Fe Grandemid size pouch type seed packaging for - Pepper Hot Santa Fe Grande
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Wheat Seeds - Hard Whitemid size pouch type seed packaging for - Wheat Hard White
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Carrot Seeds - Royal Chantenaysmall size packet type seed packaging for - Carrot Royal Chantenay
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