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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Statice Seeds - QIS SeriesStatice Seeds - QIS Series
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Pak Choi Seeds - Tall White Stem Hybridmid size pouch type seed packaging for - Pak Choi Tall White Stem Hybrid
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Sweet Marjoram SeedsSweet Marjoram Seeds
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Pea Seeds - Snow - Mammoth Melting Sugar Podmid size pouch type seed packaging for - Pea Snow Mammoth Melting Sugar Pod
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Lettuce Seeds - Leaf - Red Sailsmid size pouch type seed packaging for - Lettuce Leaf Red Sails
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Beet - Detroit Dark Red (Organic) - Microgreens SeedsBeet - Detroit Dark Red (Organic) - Microgreens Seeds
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Cabbage Seeds - Mammoth Red Rocksmall size packet type seed packaging for - Cabbage Mammoth Red Rock
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Deluxe Microgreens Starter KitDeluxe Microgreens Starter Kit
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Kale Microgreens SeedsKale Microgreens Seeds
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seed starter kit culinary BoxSeed Starter Kit Mexican Salsa
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French Marigold Seeds - Durango Series (Coated)French Marigold Seeds - Durango Series (Coated)
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Cucumber Seeds - Homemade Pickles (Organic)small size packet type seed packaging for - Cucumber Homemade Pickles Organic
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Shiso (Perilla) - Green - Microgreens SeedsShiso (Perilla) - Green - Microgreens Seeds
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Tray Insert - 72 Cell - 12x6 NestedTray Insert - 72 Cell - 12x6 Nested
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Squash Seeds - Summer - Zucchini, Endurance BC, F1small size packet type seed packaging for - Squash Summer Zucchini Endurance BC F1
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Chives Seeds - Garlic (Organic)small size packet type seed packaging for - Chives Garlic Organic
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Starting at $3.59
Anise Seedsmid size pouch type seed packaging for - Anise
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Chives - Microgreens SeedsChives - Microgreens Seeds
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Shiso Herb Seeds (Perilla) - Koreanmid size pouch type seed packaging for - Shiso Herb Perilla Korean
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Sprouting Mix - Health Blend - Organic Sprouting Seedslarge size bucket type seed packaging for - Winter Rye Organic Bulk Grains & Foods
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custom packaging for Soil-Based Microgreens Starter KitSoil-Based Microgreens Starter Kit
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Sorrel - Red Veined - Microgreens SeedsSorrel - Red Veined - Microgreens Seeds
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Pepper - Sweet - Lilac Bellmid size pouch type seed packaging for - Pepper Sweet Lilac Bell
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African Marigold Seeds - Cracker JackAfrican Marigold Seeds - Cracker Jack
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Corn Seeds - Sweet - Serendipity F1 Hybridmid size pouch type seed packaging for - Corn Sweet Serendipity Bicolor TripleSweet Hybrid
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Essential Spring Herbs - 6 PackEssential Spring Herbs - 6 Pack
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Cabbage - Mammoth Red Rock - Microgreens Seeds
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Culinary Herb Assorted Seed Pack - 12 PackCulinary Herb Assorted Seed Pack - 12 Pack
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Tomato Seeds - Cherry - Chocolate CherryTomato Seeds - Cherry - Chocolate Cherry
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Squash Seeds - Summer - Zucchini Goldenmid size pouch type seed packaging for - Squash Summer Zucchini Golden
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Kale Seeds - White Russian
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Pak Choi Seeds - White Stem - Organic
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