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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2354 Items
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Celeriac Giant Praguemid size pouch type seed packaging for - Celeriac Giant Prague
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Corn Seeds - Popcorn - Robust Yellow Hulless Hybridmid size pouch type seed packaging for - Corn Popcorn Robust Yellow Hulless Hybrid
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Compact Emergency Bug Out Bag - 19 PackCompact Emergency Bug Out Bag - 19 Pack
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Corn Seeds - Sweet - Silver King Hybridmid size pouch type seed packaging for - Corn Sweet Silver King Hybrid
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Grow and Store Garden Seeds 21 VarietyGrow and Store Garden Seeds 21 Variety
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Asparagus Seeds - UC 157 F2small size packet type seed packaging for - Asparagus UC 157 F2
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Broccoli Seeds - Destiny Hybridmid size pouch type seed packaging for - Broccoli Destiny Hybrid
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The True Leaf Market Vegetable Growing GuideThe True Leaf Market Vegetable Growing Guide
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Pepper Seeds - Hot - Thai Hot
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Onion Seeds - Bunching - Warrior AASsmall size packet type seed packaging for - Onion Bunching Warrior AAS
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Broccoli Seeds - Di Ciccosmall size packet type seed packaging for - Broccoli Di Cicco
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Cauliflower Seeds - Cheddar Hybridmid size pouch type seed packaging for - Cauliflower Cheddar Hybrid
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Garlic Bulbs - Fall - Hardneck - Blue MusicGarlic Bulbs - Fall - Hardneck - Blue Music
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Bean Seeds - Bush - California Black-Eye Cowpeassmall size packet type seed packaging for - Bean Bush California Black-Eye Cowpeas
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Pepper Seeds - Sweet - Mini Bell RedPepper Seeds - Sweet - Mini Bell Red
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Corn Seeds - Sweet - Honey Select Hybridmid size pouch type seed packaging for - Corn Sweet Honey Select Hybrid
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Watermelon Seeds - Picnic - Tendersweet Orangesmall size packet type seed packaging for - Watermelon Picnic Tendersweet Orange
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Squash Seeds - Summer - Early Prolific Straightneck (Organic)small size packet type seed packaging for - Squash Summer Early Prolific Straightneck Organic
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Pepper Seeds - Sweet - Gypsy HybridPepper Seeds - Sweet - Gypsy Hybrid
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Squash Seeds - Winter - Blue Hubbardmid size pouch type seed packaging for - Squash Winter Blue Hubbard
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Mustard Seeds - Red Giant (Organic)small size packet type seed packaging for - Mustard Red Giant Organic
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