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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4009 Items
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Melon Seeds - Cantaloupe - Hales Best Jumbosmall size packet type seed packaging for - Melon Cantaloupe Hales Best Jumbo
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Melon Seeds - Cantaloupe - Hales Best Jumbo
Starting at $3.09
Tomato Seeds - Cherry - Sungold Hybrid
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Starting at $4.39
Dill Seeds - Bouquet (Organic)small size packet type seed packaging for - Dill Bouquet Organic
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Organic
Dill Seeds - Bouquet (Organic)
Starting at $3.59
Pepper Seeds - Hot - TAM Jalapenomid size pouch type seed packaging for - Pepper Hot TAM Jalapeno
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Starting at $2.99
Nasturtium - Jewel Mix - Microgreens SeedsNasturtium - Jewel Mix - Microgreens Seeds
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Kale Dwarf Vates Blue Scotch Curled OrganicKale Dwarf Vates Blue Scotch Curled Organic
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Starting at $3.59
custom box packaging for Stainless Steel Wide Mouth Sprouting Jar LidsStainless Steel Wide Mouth Sprouting Jar Lid
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Starting at $5.36
Petunia Seeds - Supercascade Series (pelleted)Petunia Seeds - Supercascade Series (pelleted)
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Starting at $2.99
Radish Seeds - Cherry BelleRadish Seeds - Cherry Belle
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Cilantro Seeds - Leisure Splits - Microgreens SeedsCilantro Seeds - Leisure Splits - Microgreens Seeds
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Oregano Seeds - Common Italian (Organic)small size packet type seed packaging for - Oregano Common Italian Organic
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Starting at $4.39
Lettuce Seeds - Mixed Greens - Mesclun MixLettuce Seeds - Mixed Greens - Mesclun Mix
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Lettuce Seeds - Mixed Greens - Mesclun Mix
Starting at $2.99
Watermelon Seeds - Mini - Sugar Baby
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Watermelon Seeds - Mini - Sugar Baby
Starting at $2.79
Beet - Bulls Blood - Microgreens SeedsBeet - Bulls Blood - Microgreens Seeds
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Beet - Bulls Blood - Microgreens Seeds
Starting at $5.85
Crimson Clover - Cover Crop Seedsmid size pouch type seed packaging for - Crimson Clover Cover Crop
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Crimson Clover - Cover Crop Seeds
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Lavender Seeds - Common English (aka Vera)Lavender Seeds - Common English (aka Vera)
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Lavender Seeds - Common English (aka Vera)
Starting at $2.99
Buckwheat (Organic) - Microgreens SeedsBuckwheat (Organic) - Microgreens Seeds
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Starting at $10.61
Pepper Seeds - Sweet - Golden Cal WonderPepper Seeds - Sweet - Golden Cal Wonder
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Pepper Seeds - Sweet - Golden Cal Wonder
Starting at $2.99
Tomato Seeds - Salad - Better Boy Plus Hybridmid size pouch type seed packaging for - Tomato Salad Better Boy Plus Hybrid
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Starting at $3.99
Pepper Seeds - Sweet - Sweet BananaPepper Seeds - Sweet - Sweet Banana
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Pepper Seeds - Sweet - Sweet Banana
Starting at $2.99
Radish Seeds - Daikon Minowase
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Radish Seeds - Daikon Minowase
Starting at $3.99
Radish - Triton Purple - Microgreens SeedsRadish - Triton Purple - Microgreens Seeds
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Starting at $2.99
Squash Seeds - Winter - Vegetable SpaghettiSquash Seeds - Winter - Vegetable Spaghetti
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Squash Seeds - Winter - Vegetable Spaghetti
Starting at $2.99
Lettuce Seeds - Butterhead - Buttercrunchsmall size packet type seed packaging for - Lettuce Butterhead Buttercrunch
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Lettuce Seeds - Butterhead - Buttercrunch
Starting at $2.99
Nasturtium Seeds - Jewel MixNasturtium Seeds - Jewel Mix
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Starting at $2.99
Tomato Seeds - Paste - San Marzano Indeterminatemid size pouch type seed packaging for - Tomato Paste San Marzano Indeterminate
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Tomato Seeds - Paste - San Marzano Indeterminate
Starting at $2.99
Lentil - Crunchy Lentil Fest Mix (Organic) - Sprouting SeedsLentil - Crunchy Lentil Fest Mix (Organic) - Sprouting Seeds
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Wheat - Hard Red Winter (Organic) - Wheatgrass SeedsWheat - Hard Red Winter (Organic) - Wheatgrass Seeds
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Lemon Balm Seedsmid size pouch type seed packaging for - Lemon Balm
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Lemon Balm Seeds
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Chives Seeds - Garlic
Starting at $2.99
Tomato Seeds - Paste - Roma (Organic)
Starting at $3.59
Stevia Seeds - Sweet Herb
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