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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712 Items
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Tomato Seeds - Salad - Green Zebra (Organic)small size packet type seed packaging for - Tomato Salad Green Zebra Organic
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Bean Seeds - Bush - Contender (Organic)small size packet type seed packaging for - Bean Bush Contender Organic
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Kale - Dwarf Vates Blue Scotch Curled (Organic) - Microgreens Seedsmid size pouch type seed packaging for - Kale Dwarf Vates Blue Scotch Curled Organic Microgreens
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Pea Seeds - Shelling - Progress No. 9 (Organic)small size packet type seed packaging for - Pea Shelling Progress No 9 Organic
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Spelt (Organic) - Bulk Grains & FoodsSpelt (Organic) - Bulk Grains & Foods
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Cucumber Seeds - Lemon (Organic)Cucumber Seeds - Lemon (Organic)
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Amaranth (Organic) - Sprouting SeedsAmaranth (Organic) - Sprouting Seeds
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Rye - Winter (Organic) - Grass SeedsRye - Winter (Organic) - Grass Seeds
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Kale Seeds - Dwarf Siberian - Organicsmall size packet type seed packaging for - Kale Dwarf Siberian Organic
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Tomato Seeds - Cherry - Fox Cherry (Organic)mid size pouch type seed packaging for - Tomato Slicing Yellow Perfection Organic
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Soybean - Black (Organic) - Sprouting SeedsSoybean - Black (Organic) - Sprouting Seeds
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Green Lentils (Organic) - Bulk Grains & FoodsGreen Lentils (Organic) - Bulk Grains & Foods
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Buckwheat Seeds - Japanese - Organic
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Windowsill Self Watering Microgreens KitWindowsill Self Watering Microgreens Kit
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Staff Favorite
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$16.36
Basil Seeds - Sweet (Organic) - MicrogreensBasil Seeds - Sweet (Organic) - Microgreens
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Squash Seeds - Summer - Scallop Yellow Bush (Organic)mid size pouch type seed packaging for - Squash Summer Scallop Yellow Bush Organic
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Carrot Seeds - Little Fingers - Organicsmall size packet type seed packaging for - Carrot Little Fingers Organic
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Corn Seeds - Popcorn - Yellow (Organic)mid size pouch type seed packaging for - Corn Popcorn Yellow Organic
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Tomato Seeds - Slicing - Marglobe (Organic)mid size pouch type seed packaging for - Tomato Slicing Yellow Perfection Organic
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Pepper Sweet Emerald Giant Organicmid size pouch type seed packaging for - Pepper Sweet Emerald Giant Organic
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Squash Seeds - Japanese Red Kuri - OrganicSquash Seeds - Japanese Red Kuri - Organic
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Garbanzo Bean (Organic) - Bulk Grains & FoodsGarbanzo Bean (Organic) - Bulk Grains & Foods
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Lettuce Seeds, Leaf - Red Sails - Organicsmall size packet type seed packaging for - Lettuce Leaf Red Sails Organic
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Tomato Seeds - Slicing - Pineapple (Organic)mid size pouch type seed packaging for - Tomato Slicing Yellow Perfection Organic
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Barley - Organic - Cover Crop Seedsmid size pouch type seed packaging for - Barley Organic Cover Crop
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Pepper Seeds, Sweet - Marconi Red (Organic)
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Bean Seeds - Bush - Light Red Kidney (Organic)
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Pepper Seeds, Hot - Poblano - Organic
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Broccoli Seeds - Romanesco - Organic
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Corn Seeds - Flint - Hopi Blue (Organic)
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Cucumber Seeds - Boston Pickling (Organic)
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Seed Potatoes - Spring - Russet (Organic)
Starting at $9.28
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