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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3657 Items
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Lettuce Seeds - Leaf - Ruby Redmid size pouch type seed packaging for - Lettuce Leaf Ruby Red
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Dahlia Seeds - Figaro Series (Coated)Dahlia Seeds - Figaro Series (Coated)
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Nasturtium - Empress of India - Microgreens SeedsNasturtium - Empress of India - Microgreens Seeds
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Tomato Seeds - Cherry - Isis Candysmall size packet type seed packaging for - Tomato Cherry Isis Candy
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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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Corn Salad (Mache) Seeds - Dutch Broad Leavedmid size pouch type seed packaging for - Corn Salad Mache Dutch Broad Leaved
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Corn Salad (Mache) Seeds - Dutch Broad Leaved
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Pepper Seeds - Sweet - ShishitoPepper Seeds - Sweet - Shishito
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Broccoli Seeds - Green Sprouting Calabresesmall size packet type seed packaging for - Broccoli Green Sprouting Calabrese
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Beet Seeds - Sugar Beetsmall size packet type seed packaging for - Beet Sugar Beet
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Rutabaga Seeds - American Purple Top
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Broccoli Seeds - Di Cicco (Organic)small size packet type seed packaging for - Broccoli Di Cicco Organic
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Squash Seeds - Summer - Cocozelle Zucchinismall size packet type seed packaging for - Squash Summer Cocozelle Zucchini
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No-Till Forage Friendly Cover Crop MixNo-Till Forage Friendly Cover Crop Mix
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Wildflower Seeds - Hummingbird and ButterflyWildflower Seeds - Hummingbird and Butterfly
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Wildflower Seeds - Hummingbird and Butterfly
$9.58 $11.44
Thyme Seeds - Frenchsmall size packet type seed packaging for - Thyme French
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Beet Seeds - Chioggiasmall size packet type seed packaging for - Beet Chioggia
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Cucumber Seeds - Tendergreen Burpless (Organic)small size packet type seed packaging for - Cucumber Tendergreen Burpless Organic
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Bean Seeds - Bush - Top Notch Golden Waxmid size pouch type seed packaging for - Bean Bush Top Notch Golden Wax
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Bean Seeds - Bush - Henderson Limamid size pouch type seed packaging for - Bean Bush Henderson Lima
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Zucchini Seeds - Cocozelle - Organicmid size pouch type seed packaging for - Zucchini Cocozelle Organic
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Basil Seeds - Green Leaf Holy Basilmid size pouch type seed packaging for - Basil Green Leaf Holy Basil
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Sandwich mix (Organic) - Sprouting Seedsmid size pouch type seed packaging for - Sandwich mix Organic Sprouting
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Swiss Chard Seeds - Bright Lightsmid size pouch type seed packaging for - Swiss Chard Bright Lights
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Cilantro Seeds - Slow Bolt (Organic) - Microgreens Seeds
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Radish Seeds - French Breakfast - Organicsmall size packet type seed packaging for - Radish French Breakfast Organic
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Melon Seeds - Cantaloupe - Imperial 45mid size pouch type seed packaging for - Melon Cantaloupe Imperial 45
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Fennel - Florence - Microgreens Seeds
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Corn Seeds - Sweet - Silver Queen Hybrid
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Shiso (Perilla) - Purple - Microgreens Seeds
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Feverfew Seeds
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Parsley Seeds - Italian Giant (Organic)
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