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
Legend: H for Heirloom, O for Organic, A for AAS Winner, F for staff favorites
1684 Items
{ "manual": "Featured", "most-relevant": "Most relevant", "best-selling": "Best selling", "title-ascending": "Alphabetically, A-Z", "title-descending": "Alphabetically, Z-A", "price-ascending": "Price, low to high", "price-descending": "Price, high to low", "created-ascending": "Date, old to new", "created-descending": "Date, new to old" }
Cabbage Seeds - All Seasons (Organic)small size packet type seed packaging for - Cabbage All Seasons Organic
-0
Heirloom
Organic
Cabbage Seeds - All Seasons (Organic)
Starting at $3.59
Pea Seeds - Snap - Cascadia (Organic)mid size pouch type seed packaging for - Pea Snap Cascadia Organic
-0
Heirloom
Pea Seeds - Snap - Cascadia (Organic)
Starting at $3.59
Bean Seeds - Bush - Stringless Green Pod (Burpee)small size packet type seed packaging for - Bean Bush Stringless Green Pod Burpee
-0
Heirloom
Bean Seeds - Bush - Stringless Green Pod (Burpee)
Starting at $2.63
Okra Seeds - Star Of Davidmid size pouch type seed packaging for - Zinnia Magellan Series Orange
-0
Heirloom
Okra Seeds - Star Of David
Starting at $2.99
Barley (Organic) - Bulk Grains & Foodssmall size packet type seed packaging for - Barley Organic Bulk Grains & Foods
-0
Organic
Barley (Organic) - Bulk Grains & Foods
Starting at $5.91
Yellow Mustard Microgreens SeedsYellow Mustard Microgreens Seeds
-0
Heirloom
Yellow Mustard Microgreens Seeds
Starting at $5.29
Pepper Seeds - Hot - Thai Super Chili Hybrid
-0
Pepper Seeds - Hot - Thai Super Chili Hybrid
Starting at $3.99
Lettuce Seeds - Romaine / COS - Dark Green Cossmall size packet type seed packaging for - Lettuce Romaine / COS Dark Green Cos
-0
Heirloom
Lettuce Seeds - Romaine / COS - Dark Green Cos
Starting at $2.99
Bean Seeds - Bush - Contender (Organic)small size packet type seed packaging for - Bean Bush Contender Organic
-0
Heirloom
Organic
Bean Seeds - Bush - Contender (Organic)
Starting at $3.77
Lettuce Seeds - Leaf - Salad Bowl Redmid size pouch type seed packaging for - Lettuce Leaf Salad Bowl Red
-0
Heirloom
Lettuce Seeds - Leaf - Salad Bowl Red
Starting at $2.99
Chinese Cabbage Seeds - Aichimid size pouch type seed packaging for - Chinese Cabbage Aichi
-0
Heirloom
Chinese Cabbage Seeds - Aichi
Starting at $3.99
Pak Choi Seeds - Hotau Hybrid
-0
Pak Choi Seeds - Hotau Hybrid
Starting at $3.99
Gourd Seeds, Bitter - White - Hybridmid size pouch type seed packaging for - Gourd Bitter White Hybrid
-0
Gourd Seeds, Bitter - White - Hybrid
Starting at $3.99
Kale - Dwarf Vates Blue Scotch Curled (Organic) - Microgreens Seedsmid size pouch type seed packaging for - Kale Dwarf Vates Blue Scotch Curled Organic Microgreens
-0
Heirloom
Organic
Kale - Dwarf Vates Blue Scotch Curled (Organic) - Microgreens...
Starting at $11.20
Pea Seeds - Shelling - Progress No. 9 (Organic)small size packet type seed packaging for - Pea Shelling Progress No 9 Organic
-31%
Heirloom
Organic
Pea Seeds - Shelling - Progress No. 9 (Organic)
Starting at $1.99
Spelt (Organic) - Bulk Grains & FoodsSpelt (Organic) - Bulk Grains & Foods
-0
Organic
Spelt (Organic) - Bulk Grains & Foods
Starting at $9.01
Cucumber Seeds - Lemon (Organic)Cucumber Seeds - Lemon (Organic)
-0
Heirloom
Organic
Cucumber Seeds - Lemon (Organic)
Starting at $3.59
Mustard - Spicy Oriental - Microgreens Seeds
-0
Heirloom
Mustard - Spicy Oriental - Microgreens Seeds
Starting at $3.99
Pak Choi Seeds - Joi Choi Hybridmid size pouch type seed packaging for - Pak Choi Joi Choi Hybrid
-0
Pak Choi Seeds - Joi Choi Hybrid
Starting at $3.99
Cucumber Seeds - Palace Pride - Hybridmid size pouch type seed packaging for - Cucumber Palace Pride Hybrid
-50%
Cucumber Seeds - Palace Pride - Hybrid
Starting at $1.99
Gourd Seeds - Buab Moom - Hybrid - Kitazawa Spring SALEmid size pouch type seed packaging for - Gourd Buab Moom Hybrid Kitazawa Spring SALE
-30%
Gourd Seeds - Buab Moom - Hybrid - Kitazawa Spring...
Starting at $2.79
Pepper Seeds - Hot - Caribbean Blendsmall size packet type seed packaging for - Pepper Hot Caribbean Blend
-0
Pepper Seeds - Hot - Caribbean Blend
Starting at $2.99
Amaranth (Organic) - Sprouting SeedsAmaranth (Organic) - Sprouting Seeds
-0
Heirloom
Organic
Amaranth (Organic) - Sprouting Seeds
Starting at $17.15
Rye - Winter (Organic) - Grass SeedsRye - Winter (Organic) - Grass Seeds
-0
Organic
Rye - Winter (Organic) - Grass Seeds
Starting at $7.84
Bean Seeds - Bush - Tendergreensmall size packet type seed packaging for - Bean Bush Tendergreen
-0
Heirloom
Bean Seeds - Bush - Tendergreen
Starting at $2.99
Bean Seeds - Bush - Early Thorogreen Limasmall size packet type seed packaging for - Bean Bush Early Thorogreen Lima
-0
Heirloom
Bean Seeds - Bush - Early Thorogreen Lima
Starting at $2.63
Leafy Greens Seed Assortment - 7 PackLeafy Greens Seed Assortment - 7 Pack
-0
Heirloom
Staff Favorite
Leafy Greens Seed Assortment - 7 Pack
$13.23
Corn Salad Seeds - French
Starting at $2.99
Pepper Seeds, Hot - Poblano - Organic
Starting at $3.79
Broccoli Seeds - Romanesco - Organic
Starting at $3.59
Sorrel - Large Leaf - Microgreens Seeds
Starting at $7.89
Pepper Seeds - Hot - Poblano Ancho Grande
Starting at $2.99
[ { "featured_image": "files/organic-all-seasons-cabbage-Comp.jpg", "secondary_image": "products/SSC-organic-generic-packet-com_ee792cb8-eea5-4d92-9d0d-e370b1d413d8.jpg", "price": 359, "handle": "organic-all-seasons-cabbage", "title": "Cabbage Seeds - All Seasons (Organic)", "url": "/products/organic-all-seasons-cabbage", "available": true }, { "featured_image": "products/pea-snap-cascadia-wm_700.jpg", "secondary_image": "products/non-gmo-seed-bag-sus-wm-comp_dae0daa1-20dc-4430-a811-5f2fa3ac1a25.jpg", "price": 359, "handle": "pea-snap-cascadia-seed", "title": "Pea Seeds - Snap - Cascadia (Organic)", "url": "/products/pea-snap-cascadia-seed", "available": true }, { "featured_image": "products/bush-bean-stringless-green-pod-seed-wm_700.jpg", "secondary_image": "products/MVS-generic-packet_1_39a66ef8-0b8b-4ffd-aa9a-6c402fa72453.jpg", "price": 263, "handle": "bean-bush-stringless-green-pod-burpee", "title": "Bean Seeds - Bush - Stringless Green Pod (Burpee)", "url": "/products/bean-bush-stringless-green-pod-burpee", "available": true }, { "featured_image": "files/star-of-david-okra-Comp.jpg", "secondary_image": "files/MVS_1_lb.jpg", "price": 299, "handle": "star-of-david-okra", "title": "Okra Seeds - Star Of David", "url": "/products/star-of-david-okra", "available": true }, { "featured_image": "products/barley-grain-bulk-wm_700.jpg", "secondary_image": "products/MVS-organic-generic-packet_5229dea9-b84a-45df-9ecf-3b2cb9abbfe1.jpg", "price": 591, "handle": "barley-organic-bulk-grains-foods", "title": "Barley (Organic) - Bulk Grains & Foods", "url": "/products/barley-organic-bulk-grains-foods", "available": true }, { "featured_image": "files/yellow-mustard-microgreens-seeds-comp.jpg", "secondary_image": "products/yellow-mustard-microgreens-wb-wm_-_Copy_1.jpg", "price": 529, "handle": "yellow-mustard-microgreens-seeds", "title": "Yellow Mustard Microgreens Seeds", "url": "/products/yellow-mustard-microgreens-seeds", "available": true }, { "featured_image": "files/thai-super-chili-f1-pepper-Comp.jpg", "secondary_image": "", "price": 399, "handle": "thai-super-chili-f1-pepper", "title": "Pepper Seeds - Hot - Thai Super Chili Hybrid", "url": "/products/thai-super-chili-f1-pepper", "available": true }, { "featured_image": "files/lettuce-seeds-romaine-cos-dark-green-cos-Comp.jpg", "secondary_image": "products/Seed_Packet_1_1_1_1_1_966b45df-142b-44e0-97b0-1415b1461522.jpg", "price": 299, "handle": "lettuce-seeds-romaine-cos-dark-green-cos", "title": "Lettuce Seeds - Romaine / COS - Dark Green Cos", "url": "/products/lettuce-seeds-romaine-cos-dark-green-cos", "available": true }, { "featured_image": "files/organic-contender-bush-bean-seeds-Comp.jpg", "secondary_image": "products/SSC-organic-generic-packet-com_b9bdce8f-a153-4b16-b9df-b0000ddd320d.jpg", "price": 377, "handle": "organic-contender-bush-bean-seeds", "title": "Bean Seeds - Bush - Contender (Organic)", "url": "/products/organic-contender-bush-bean-seeds", "available": true }, { "featured_image": "files/lettuce-leaf-salad-bowl-red-seeds-Comp.jpg", "secondary_image": "products/non-gmo-sprouting-seed_4af5d77a-2347-443f-b47f-73f5d030966f.jpg", "price": 299, "handle": "lettuce-leaf-salad-bowl-red-seeds", "title": "Lettuce Seeds - Leaf - Salad Bowl Red", "url": "/products/lettuce-leaf-salad-bowl-red-seeds", "available": true }, { "featured_image": "files/chinese-cabbage-seeds-aichi-comp.jpg", "secondary_image": "products/non-gmo-seed-bag-premium_236ba20c-c0d2-4c6b-91ed-9ac81d4f8200.png", "price": 399, "handle": "chinese-cabbage-seeds-aichi", "title": "Chinese Cabbage Seeds - Aichi", "url": "/products/chinese-cabbage-seeds-aichi", "available": true }, { "featured_image": "files/cabbage-seeds-pak-choi-hotau-hybrid-Comp.jpg", "secondary_image": "", "price": 399, "handle": "cabbage-seeds-pak-choi-hotau-hybrid", "title": "Pak Choi Seeds - Hotau Hybrid", "url": "/products/cabbage-seeds-pak-choi-hotau-hybrid", "available": true }, { "featured_image": "files/kohlrabi-seeds-purple-vienna-organic-Comp_1.jpg", "secondary_image": "products/non-gmo-seed-bag-premium_09d7a758-bdd8-4a38-81ce-9042cff82420.png", "price": 399, "handle": "gourd-seeds-white-hybrid", "title": "Gourd Seeds, Bitter - White - Hybrid", "url": "/products/gourd-seeds-white-hybrid", "available": true }, { "featured_image": "files/kale-vates-blue-scotch-curled-microgreens-seeds-organic-comp.jpg", "secondary_image": "products/non-gmo-seed-bag-sus-wm-comp_1ca7c374-9d5f-41d8-a62f-cb6efff31496.jpg", "price": 1120, "handle": "kale-vates-blue-scotch-curled-microgreens-seeds-organic", "title": "Kale - Dwarf Vates Blue Scotch Curled (Organic) - Microgreens Seeds", "url": "/products/kale-vates-blue-scotch-curled-microgreens-seeds-organic", "available": true }, { "featured_image": "files/pea-progress-organic-Comp.jpg", "secondary_image": "products/SSC-organic-generic-packet-com_48936932-766c-43f9-94ad-1a4e8a8d6bcb.jpg", "price": 199, "handle": "pea-progress-organic", "title": "Pea Seeds - Shelling - Progress No. 9 (Organic)", "url": "/products/pea-progress-organic", "available": true }, { "featured_image": "files/Spelt-Organic-Bulk-Grains-Foods-comp.jpg", "secondary_image": "products/16-oz-spelt-grain-bag-seed-wm_700.jpg", "price": 901, "handle": "spelt-organic-bulk-grains-foods", "title": "Spelt (Organic) - Bulk Grains & Foods", "url": "/products/spelt-organic-bulk-grains-foods", "available": true }, { "featured_image": "files/corn-salad-seeds-french-1-comp.jpg", "secondary_image": "products/Seed_Pouch_1_1_1_a2f23940-31c0-4ac5-9b95-450a9addd6f9.jpg", "price": 299, "handle": "corn-salad-seeds-french-1", "title": "Corn Salad Seeds - French", "url": "/products/corn-salad-seeds-french-1", "available": false }, { "featured_image": "files/pepper-seeds-hot-poblano-organic-comp.jpg", "secondary_image": "products/SSC-organic-generic-packet-com_7180ec06-d82c-41be-a88f-e1677e518269.jpg", "price": 379, "handle": "pepper-seeds-hot-poblano-organic", "title": "Pepper Seeds, Hot - Poblano - Organic", "url": "/products/pepper-seeds-hot-poblano-organic", "available": false }, { "featured_image": "products/brocolli-romanesco-org-com-wm.jpg", "secondary_image": "products/SSC-organic-generic-packet-com_de55c9fd-573d-493d-81cf-433002e91c92.jpg", "price": 359, "handle": "organic-romanesco-broccoli-seed", "title": "Broccoli Seeds - Romanesco - Organic", "url": "/products/organic-romanesco-broccoli-seed", "available": false }, { "featured_image": "files/Sorrel-Large-Leaf-Microgreens-Seeds-comp.jpg", "secondary_image": "products/sorrel-lg-leaf-seeds-wm_700.jpg", "price": 789, "handle": "sorrel-large-leaf-microgreens-seeds", "title": "Sorrel - Large Leaf - Microgreens Seeds", "url": "/products/sorrel-large-leaf-microgreens-seeds", "available": false }, { "featured_image": "files/1696612593_Lemon-cucumber-Wood-background-sustainable-comp_6a8e8de4-1f20-439d-843b-dfa00b0e2734.jpg", "secondary_image": "files/1696612594_Lemon-cucumber-WB-sustainable_43460ef9-1278-43f8-92d0-555f3e831bdc.jpg", "price": 359, "handle": "organic-lemon-cucumber-seeds", "title": "Cucumber Seeds - Lemon (Organic)", "url": "/products/organic-lemon-cucumber-seeds", "available": true }, { "featured_image": "files/mustard-spicy-oriental-seeds-comp.jpg", "secondary_image": "", "price": 399, "handle": "mustard-spicy-oriental-seeds", "title": "Mustard - Spicy Oriental - Microgreens Seeds", "url": "/products/mustard-spicy-oriental-seeds", "available": true }, { "featured_image": "files/cabbage-seeds-pak-choi-joi-choi-hybrid-Comp.jpg", "secondary_image": "products/non-gmo-seed-bag-premium_295b2949-006c-4983-81df-719534d078e4.png", "price": 399, "handle": "cabbage-seeds-pak-choi-joi-choi-hybrid", "title": "Pak Choi Seeds - Joi Choi Hybrid", "url": "/products/cabbage-seeds-pak-choi-joi-choi-hybrid", "available": true }, { "featured_image": "files/cucumber-seeds-palace-pride-hybrid-Comp.jpg", "secondary_image": "products/non-gmo-seed-bag-premium_0a29105f-5ecb-4c58-b7a7-d82a7b5c048c.png", "price": 199, "handle": "cucumber-seeds-palace-pride-hybrid", "title": "Cucumber Seeds - Palace Pride - Hybrid", "url": "/products/cucumber-seeds-palace-pride-hybrid", "available": true }, { "featured_image": "files/pepper-hot-ancho-grande-seeds-Comp.jpg", "secondary_image": "products/non-gmo-sprouting-seed_028891b9-c23d-415d-8363-145bc6997170.jpg", "price": 299, "handle": "pepper-hot-ancho-grande-seeds", "title": "Pepper Seeds - Hot - Poblano Ancho Grande", "url": "/products/pepper-hot-ancho-grande-seeds", "available": false }, { "featured_image": "files/gourd-seeds-buab-moom-hybrid-Comp.jpg", "secondary_image": "products/non-gmo-seed-bag-premium_a55900f1-c3f5-49f0-9be0-f073c8af164c.png", "price": 279, "handle": "gourd-seeds-buab-moom-hybrid", "title": "Gourd Seeds - Buab Moom - Hybrid - Kitazawa Spring SALE", "url": "/products/gourd-seeds-buab-moom-hybrid", "available": true }, { "featured_image": "files/pepper-seeds-hot-caribbean-blend-comp.jpg", "secondary_image": "products/MVS-generic-packet-com_31b0191b-ac98-4aa5-9a97-c0722d5830d9.jpg", "price": 299, "handle": "pepper-seeds-hot-caribbean-blend", "title": "Pepper Seeds - Hot - Caribbean Blend", "url": "/products/pepper-seeds-hot-caribbean-blend", "available": true }, { "featured_image": "files/amaranth-sprouting-seed-organic-comp.jpg", "secondary_image": "products/amaranth-grain-seeds-wm_700.jpg", "price": 1715, "handle": "amaranth-sprouting-seed-organic", "title": "Amaranth (Organic) - Sprouting Seeds", "url": "/products/amaranth-sprouting-seed-organic", "available": true }, { "featured_image": "files/rye-winter-organic-grass-seeds-comp.jpg", "secondary_image": "products/rye-seed-sprouting-wm_700_33eac18b-bb76-41d8-bd81-ff4a17604ea8.jpg", "price": 784, "handle": "rye-winter-organic-grass-seeds", "title": "Rye - Winter (Organic) - Grass Seeds", "url": "/products/rye-winter-organic-grass-seeds", "available": true }, { "featured_image": "files/bean-bush-tendergreen-comp.jpg", "secondary_image": "products/MVS-generic-packet_1_c211bc1c-6344-4ef2-977c-9ff9ee3acc2e.jpg", "price": 299, "handle": "bean-bush-tendergreen", "title": "Bean Seeds - Bush - Tendergreen", "url": "/products/bean-bush-tendergreen", "available": true }, { "featured_image": "files/early-thorogreen-bush-lima-bean-comp.jpg", "secondary_image": "products/SSC-generic-packet_1_1_1_8a04d89e-d344-4cc1-b424-72c02ee3a2c2.jpg", "price": 263, "handle": "early-thorogreen-bush-lima-bean", "title": "Bean Seeds - Bush - Early Thorogreen Lima", "url": "/products/early-thorogreen-bush-lima-bean", "available": true }, { "featured_image": "files/Conventional-Leafy-Greens_7-Pack-Collage-Comp.jpg", "secondary_image": "files/Conventional-Leafy-Greens-7-Pack-Comp.jpg", "price": 1323, "handle": "leafy-greens-seed-assortment-7-pack", "title": "Leafy Greens Seed Assortment - 7 Pack", "url": "/products/leafy-greens-seed-assortment-7-pack", "available": true } ]