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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Yellow Pea - Organic - Sprouting SeedsYellow Pea - Organic - Sprouting Seeds
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Kale - Dwarf Siberian - Microgreens SeedsKale - Dwarf Siberian - Microgreens Seeds
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Morning Glory Seeds - Heavenly Bluemid size pouch type seed packaging for - Morning Glory Heavenly Blue
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Zucchini Seeds - Casertasmall size packet type seed packaging for - Zucchini Caserta
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Vinca Seeds - Mediterranean XP SeriesVinca Seeds - Mediterranean XP Series
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Cress Seeds - Curled (Organic)Cress Seeds - Curled (Organic)
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Okra Seeds - Jambalaya 2.0small size packet type seed packaging for - Okra Jambalaya 20
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Watermelon Seeds - Picnic - Cal Sweetmid size pouch type seed packaging for - Watermelon Picnic Cal Sweet
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Petunia Seeds - Picobella Series (pelleted)Petunia Seeds - Picobella Series (pelleted)
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Radish - Champion - Microgreens SeedsRadish - Champion - Microgreens Seeds
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Watermelon Seeds - Mini - Cal Sweet Bush AASsmall size packet type seed packaging for - Watermelon Mini Cal Sweet Bush AAS
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Tray Insert - 48 Cell - 12x4 NestedTray Insert - 48 Cell - 12x4 Nested
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Heirloom Sunflower Seed Collection - 5 PackHeirloom Sunflower Seed Collection - 5 Pack
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Pak Choi Seeds - Hotau Hybrid
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Yellow Mustard Microgreens SeedsYellow Mustard Microgreens Seeds
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Gourd Seeds - Tai Hoo - Hybrid - Kitazawa Spring SALEmid size pouch type seed packaging for - Gourd Tai Hoo Hybrid Kitazawa Spring SALE
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Sunflower Seeds - Teddy Bearmid size pouch type seed packaging for - Sunflower Teddy Bear
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Pea Seeds - Snap - Cascadia (Organic)mid size pouch type seed packaging for - Pea Snap Cascadia Organic
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Amaranth (Organic) - Microgreens Seeds
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Bean Seeds - Bush - Stringless Green Pod (Burpee)small size packet type seed packaging for - Bean Bush Stringless Green Pod Burpee
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Gaillardia Seeds - Blanket Flowermid size pouch type seed packaging for - Gaillardia Blanket Flower
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Handy Pantry - Jute Fiber Hydroponic Grow Medium - 10x10 MatsHandy Pantry - Jute Fiber Hydroponic Grow Medium - 10x10 Mats
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Okra Seeds - Star Of Davidmid size pouch type seed packaging for - Zinnia Magellan Series Orange
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Rutabaga - American Purple Top - Microgreens SeedsRutabaga - American Purple Top - Microgreens Seeds
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Pumpkin Seeds - White Queensmall size packet type seed packaging for - Pumpkin White Queen
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Sunflower Red Sun Sunflower Seeds - Red Sun
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Tomato Seeds - Slicing - Black RussianTomato Seeds - Slicing - Black Russian
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Morning Glory Seeds - Mixed Colorssmall size packet type seed packaging for - Morning Glory Mixed Colors
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Lentil - Black (Organic) - Sprouting Seeds
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Onion Seeds - Bunching - Kyoto Kujo Negi
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Lettuce Seeds - Romaine / COS - Dark Green Cos
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22 x11 Perma-Nest Planting Trays
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