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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1078 Items
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Cabbage Seeds - Red Express - Organicsmall size packet type seed packaging for - Cabbage Red Express Organic
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Cabbage Seeds - Glory of EnkhuizenCabbage Seeds - Glory of Enkhuizen
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Shirley Poppy Seeds - Double Mixedsmall size packet type seed packaging for - Shirley Poppy Double Mixed
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Parsley Seeds - Moss Curled (Organic)small size packet type seed packaging for - Parsley Moss Curled Organic
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Onion Seeds - Utah Yellow Sweet Spanish (Organic)mid size pouch type seed packaging for - Onion Utah Yellow Sweet Spanish Organic
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Radish Seeds - Korean - Shin Dong Ha - Hybridmid size pouch type seed packaging for - Radish Korean Shin Dong Ha Hybrid
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Burdock Seeds - Salada Musumemid size pouch type seed packaging for - Burdock Salada Musume
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Lettuce Seeds - Leaf - Lollo Biondasmall size packet type seed packaging for - Lettuce Leaf Lollo Bionda
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Radish Seeds - Confetti Mix - Organicmid size pouch type seed packaging for - Radish Confetti Mix Organic
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Mustard Seeds - Wasabinamid size pouch type seed packaging for - Mustard Wasabina
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Radish Seeds - Chinese - Red Meatmid size pouch type seed packaging for - Radish Chinese Red Meat
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Tokinashi All Season Radishmid size pouch type seed packaging for - Radish Tokinashi All Season
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Brassica Classic Trio Cover Crop Seed MixBrassica Classic Trio Cover Crop Seed Mix
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Radish Seeds - Fiesta Blendsmall size packet type seed packaging for - Radish Fiesta Blend
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Parsley Seeds - Forest Greenmid size pouch type seed packaging for - Parsley Forest Green
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Turnip Japanese Red RoundTurnip Japanese Red Person
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Pea Seeds - Snap - Sugar Snap (Treated)mid size pouch type seed packaging for - Pea Snap Sugar Snap Treated
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Onion Seeds - Short - Barlettasmall size packet type seed packaging for - Onion Short Barletta
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Chinese Cabbage Seeds - Mini Kisaku 50 - Hybridmid size pouch type seed packaging for - Chinese Cabbage Mini Kisaku 50 Hybrid
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Endive Seeds - Broadleaf Batavian - Organicsmall size packet type seed packaging for - Endive Broadleaf Batavian Organic
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Chinese Cabbage Seeds - Koganemid size pouch type seed packaging for - Chinese Cabbage Kogane
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Onion Seeds - Short - Superex Yellow Hybrid
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Mustard Seeds - Senposai Komatsuna Hybridmid size pouch type seed packaging for - Mustard Senposai Komatsuna Hybrid
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Lettuce Seeds - Bistro Blend
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Pak Choi Seeds - Nabi Queen - Dwarf Hybrid
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Heuchera Seeds - Melting Fire (Pelleted)
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Asparagus Crowns - Spring - Jersey Giant
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Seed Potatoes - French Fingerling (Organic)
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Savory Seeds - Winter
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Saltwort Seeds
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Chard Seeds - Swiss - Oriole Orange Swiss Chard -...
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