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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397 Items
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Tomato Seeds - Slicing - One Pound Pink Hybridmid size pouch type seed packaging for - Tomato Slicing One Pound Pink Hybrid
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Tomato Seeds - Slicing - Brandywine Black Potato Leafsmall size packet type seed packaging for - Tomato Slicing Brandywine Black Potato Leaf
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Pepper Seeds - Hot - Thai OrnamentalPepper Seeds - Hot - Thai Ornamental
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Pepper Seeds - Hot - Thai Ornamental
Starting at $2.99
Parsley Seeds - Garden Blendsmall size packet type seed packaging for - Parsley Garden Blend
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Parsley Seeds - Garden Blend
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Melon Seeds - Schoon's Hardshell (Organic)small size packet type seed packaging for - Melon Schoons Hardshell Organic
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Celosia Seeds - Plumed - Texas Plume Mixed (Organic)
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Organic
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Starting at $6.09
Hyacinth Bulbs - Mixed
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Tomato Seeds - Slicing - Chef's Choice BiColor Hybrid AASsmall size packet type seed packaging for - Tomato Slicing Chefs Choice BiColor Hybrid AAS
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Daffodil Bulbs - Large Cupped 'Carlton'
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Pepper Seeds - Sweet - Nu Mex Sweetmid size pouch type seed packaging for - Zinnia Magellan Series Orange
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Grass Seeds - CloudGrass Seeds - Cloud
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Pepper Seeds - Hot - Fish (Organic)Pepper Seeds - Hot - Fish (Organic)
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Tomato Seeds - Slicing - Sparksmid size pouch type seed packaging for - Tomato Slicing Sparks
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Hyacinth Bulbs - Blue Jacket
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Pumpkin Seeds - Autumn Moon and Ghoulie Mixmid size pouch type seed packaging for - Zinnia Magellan Series Orange
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Melon Seeds - Cantaloupe - Imperial PMR 45 (Organic)small size packet type seed packaging for - Melon Cantaloupe Imperial PMR 45 Organic
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Grass Seeds - QuakingTrue Leaf Market Flower Seed packaging Bag
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Melon Seeds - Eindorsmall size packet type seed packaging for - Melon Eindor
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Calendula Seeds - Pacific Beauty Mixture (Organic)
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Tomato Seeds - Slicing - Micado Violettersmall size packet type seed packaging for - Tomato Slicing Micado Violetter
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Radish Seeds - Sakurajima Mammothmid size pouch type seed packaging for - Radish Sakurajima Mammoth
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Pumpkin Seeds - Hooligan F1 PMTsmall size packet type seed packaging for - Pumpkin Hooligan F1 PMT
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Pumpkin Seeds - Pepitas F1 AASsmall size packet type seed packaging for - Pumpkin Pepitas F1 AAS
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Pumpkin Seeds - Pepitas F1 AAS
Starting at $4.09
Gourd Seeds - Buab Liam - Hybridmid size pouch type seed packaging for - Gourd Buab Liam Hybrid
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Gourd Seeds - Buab Liam - Hybrid
Starting at $1.99
Watermelon Seeds - Picnic - Moon & Stars Yellow Flesh...
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Daffodil Bulbs - Mixed
$19.99
Pumpkin Seeds - Baby Boo
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Seed Potatoes - Lamoka (Organic)
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Begonia Tubers - Bi-Color Picotee Mixture
$9.00 $17.99
Dahlia Bulbs - Arabian Night
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Gladiolus Bulbs - Glad you Are Here Mixture
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