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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Pumpkin Seeds - Jack O Lantern - Organicsmall size packet type seed packaging for - Pumpkin Jack O Lantern Organic
-0
Heirloom
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Starting at $3.59
Oat Groats (Organic) - Bulk Grains & FoodsOat Groats (Organic) - Bulk Grains & Foods
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Starting at $8.80
Crimson Clover - Organic - Sprouting SeedsCrimson Clover - Organic - Sprouting Seeds
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Starting at $5.53
Pumpkin Seeds - Small Sugar - Organicsmall size packet type seed packaging for - Pumpkin Small Sugar Organic
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Starting at $3.59
Wheat - Soft White (Organic) - Sprouting SeedsWheat - Soft White (Organic) - Sprouting Seeds
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Starting at $8.84
Brown Flax (Organic) - Bulk Grains & FoodsBrown Flax (Organic) - Bulk Grains & Foods
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Brown Flax (Organic) - Bulk Grains & Foods
Starting at $6.75
Bean Seeds - Bush - Black Turtle (Organic)Bean Seeds - Bush - Black Turtle (Organic)
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Heirloom
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Starting at $8.90
Radish - Red Volcano (Organic) - Sprouting SeedsRadish - Red Volcano (Organic) - Sprouting Seeds
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Organic
Radish - Red Volcano (Organic) - Sprouting Seeds
Starting at $3.59
Spelt (Organic) - Sprouting SeedsSpelt (Organic) - Sprouting Seeds
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Organic
Spelt (Organic) - Sprouting Seeds
Starting at $9.01
Squash - Summer - Dark Green Zucchini (Organic)
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Squash - Summer - Dark Green Zucchini (Organic)
Starting at $3.39
Cat Grass Seeds - Wheatgrass (Organic)Cat Grass Seeds - Wheatgrass (Organic)
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Starting at $6.99
Pea Seeds - Snow - Taiwan Sugar (Organic)small size packet type seed packaging for - Pea Snow Taiwan Sugar Organic
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Heirloom
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Pea Seeds - Snow - Taiwan Sugar (Organic)
Starting at $3.39
Parsley Seeds - Plain or Single (Organic)small size packet type seed packaging for - Parsley Plain or Single Organic
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Parsley Seeds - Plain or Single (Organic)
Starting at $3.59
Yellow Soybeans (Organic) - Bulk Grains & Foodssmall size packet type seed packaging for - Yellow Soybeans Organic Bulk Grains & Foods
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Starting at $3.59
Biblical Bread Grain Mix (Organic) - Bulk Grains & FoodsBiblical Bread Grain Mix (Organic) - Bulk Grains & Foods
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Calendula Seeds - Solar Flashback Mix - Organic
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Starting at $4.39
Pepper Seeds - Sweet - Chinese Giant (Organic)mid size pouch type seed packaging for - Pepper Sweet Chinese Giant Organic
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Pepper Seeds - Sweet - Chinese Giant (Organic)
Starting at $3.79
Pepper Seeds - Hot - Anaheim Chili (Organic)small size packet type seed packaging for - Pepper Hot Anaheim Chili Organic
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Starting at $3.59
Bean Seeds - Bush - Garbanzo (Organic)Bean Seeds - Bush - Garbanzo (Organic)
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Onion Seeds - Short - Texas Grano 502 (Organic)
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Starting at $3.59
Pepper Seeds - Sweet - Shishito (Organic)Pepper Seeds - Sweet - Shishito (Organic)
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Starting at $3.99
Superfood Mix - Microgreens Seeds (Organic)Superfood Mix - Microgreens Seeds (Organic)
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Starting at $7.67
Carrot Seeds - Red Cored Chantenay - Organicsmall size packet type seed packaging for - Carrot Red Cored Chantenay Organic
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Starting at $3.59
Barley - Purple (Organic) - Sprouting SeedsBarley - Purple (Organic) - Sprouting Seeds
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Starting at $8.41
Tomato Seeds - Slicing - Brandywine Yellow (Organic)small size packet type seed packaging for - Tomato Slicing Brandywine Yellow Organic
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Tomato Seeds - Slicing - Brandywine Yellow (Organic)
$4.09
Tomato Seeds - Cherry - Large Red Cherry (Organic)mid size pouch type seed packaging for - Tomato Cherry Large Red Cherry Organic
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Tomato Seeds - Cherry - Large Red Cherry (Organic)
Starting at $4.89
Alfalfa Seeds - Allstar - Organicmid size pouch type seed packaging for - Alfalfa Allstar Organic
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Heirloom
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Starting at $3.20
Bean Seeds - Bush - Provider (Organic)
Starting at $3.59
Beet - Bulls Blood (Organic) - Microgreens Seeds
Starting at $10.23
Lettuce Seeds, Romaine - Little Caesar - Organic
Starting at $3.59
Radish - Hong Vit (Organic) - Microgreens Seeds
Starting at $3.99
Tomato Seeds - Paste - Amish Paste (Organic)
Starting at $3.79
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