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
Gourd Seeds - Fong Show - Hybrid
55-65 days maturity after transplanting. Benincasa hispida var. chieh-qua ’Fong Show’. Fong Show Gourd Seeds. Non-GMO, warm-season, annual, hybrid. This jointed gourd, hairy melon, or mokwa variety is an early...
Pak Choi Seeds - Summer Zest - Hybrid
40-45 Days to maturity. Brassica rapa Chinensis group. Summer Zest Pak Choi Seeds. Cool-Warm Season Annual Hybrid. Summer Zest is considered a medium to large size cabbage or medium maturing...
Tomato Seeds - Slicing - Giant Belgium Pink
82-90 Days to maturity (from transplant). Solanum lycopersicum. Giant Belgium Pink Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds,...
Radish Seeds - Korean - Alpine Gold - Hybrid
60 days to maturity. Raphanus sativus. Alpine Gold Korean Radish Seeds. Hybrid, cool season annual, open pollinated. Alpine Gold radishes are a clean, crisp variety with smooth and polished roots....
Radish Seeds - Halloween Mix
Halloween Mix Radish Seeds. 20 - 30 days to maturity. Can be grown in containers. Raphanus sativus. Open Pollinated. Annual. Halloween Mix contains purple yellow black and white radishes. Approximately...
Beet Seeds - Lutz Green Leaf
Beta vugaris (70 days) Lutz Green Leaf is known for its long standing storage capabilities. Also known by many as "winterkeeper" beets. Lutz has roots that are about 6" in...
Pepper Seeds - Sweet - Manganji
80-90 Days to maturity (from transplant). Capsicum annuum. Manganji Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, sweet pepper with mild heat levels. 0 to 100 Scoville Heat Units. Suitable for growing...
Yu Choy Sum Seeds - Kosaitai - Hon Tsai Tai
Yu Choy Sum Seeds - Kosaitai - Hon Tsai Tai. Heirloom, Non-GMO. Brassica rapa var purpurea. 50 days. Cool season annual. This flowering purple stem choy sum, also known as...
Red Lentils (Organic) - Bulk Grains & Foods
These Red Lentils are great for sprouting, soups, and food storage. Our Red Lentils come in resealable packaging and are tested for microbes. Available in various quantities and in resealable...
Watermelon Seeds - Picnic - AU Producer
85 Days to maturity. Citrullus lanatus. AU Producer Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, picnic watermelon. Suitable for growing in garden plots. Originally bred in Alabama, in...
Cucumber Seeds - Crystal Apple
65 Days to maturity. Cucumis sativus. Crystal Apple Cucumber Seeds. Non-GMO, annual, open-pollinated, heirloom, monoecious, slicing cucumber. Suitable for growing in fields, containers (with support), garden plots, raised beds, and...
Seasonal Seed Assortment - Summer
This carefully crafted collection of heirloom garden seeds makes it easy to plan your Summer Garden.These seeds are designed to sow during the hot months and will either be available...
Tomato Seeds - Slicing - Old German (Organic)
75 Days to maturity (from transplant). Solanum lycopersicum. Organic Old German Tomato Seeds. Non-GMO, warm season annual, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds,...
Carrot Seeds - Parisian - Organic
(55 days) A great little round carrot that is a nineteenth-century French heirloom. Organic Parisian is an early orange-red carrot that grows almost more like the shape of a large...
Bean Seeds - Bush - Fava (Organic)
70-85 Days to maturity. Vicia faba. Organic Fava Bean Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, bush, shell, fava bean. Suitable for growing in containers, garden plots, raised beds, and greenhouses....
Cucumber Seeds - Sumter
50-65 days. Non-GMO. Open-pollinated. Sumter Cucumber Seeds from True Leaf Market grow firm, 5" to 6" medium-green cucumbers with white spines. Sumter is a mildew- and scab-resistant cucumber variety that...
Radish Seeds - German Giant - Organic
Raphanus R. sativus. (29 days) They call these radishes Giant for a reason! Delicious when they are the size of a quarter, but they can grow as large as a...
Eggplant Seeds - Petch Siam
40-50 days maturity after transplant. Solanum melongena ’Petch Siam’. Petch Siam Eggplant Seeds. Non-GMO, warm-season, annual, heirloom. This well-known and productive Matti Gulla variety is easy to grow. Matti is...
Bean Seeds - Pole - Purple Moon Hyacinth
90 Days to maturity. Lablab purpureus. Purple Moon Hyacinth Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, drought tolerant, pole, snap, Asian, specialty bean. Suitable for growing in containers, garden...
Swiss Chard Seeds - Pink Lipstick
60 days. Pink Lipstick Swiss Chard is named after the bright pink hue of its stems and veins. Plants grow green delicious leaves that can be used as bitter and...
Tomato Seeds - Slicing - Chef's Choice Red Hybrid AAS
80-85 Days to maturity (from transplant). Solanum lycopersicum. Chef’s Choice Red Hybrid Tomato Seeds. Non-GMO, warm season annual, F1 hybrid, AAS winner, indeterminate, slicing tomato. Suitable for growing in garden...
Squash Seeds - Summer - Trieste White Zucchini
Trieste White Zucchini Squash produces short fruits that are very pale green in color, and are tender and delicious. Non- GMO Half Long White Zucchini are early producers, produce on...
Radish Seeds - Chinese - Green Meat Luobo
60 Days to maturity. Raphanus sativus. Green Meat Luobo Chinese Radish Heirloom Seeds. Cool Season Annual. Unlike other Chinese radishes, Green Luobos aren’t globe-shaped—instead, they grow as big as 10”...
Eggplant Seeds - Konasu
60 days maturity after transplant. Solanum melongena ’Konasu’. Konasu Eggplant Seeds. Non-GMO, warm-season, annual, heirloom. This tiny, bite-sized, rounded eggplant has shiny dark purple skin that looks almost onyx. The...
Melon Seeds - Banana
80-100 Days to maturity. Cucumis melo. Banana Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Melon. Suitable for growing in garden plots, raised beds, and greenhouses. These unique melons got...
Mustard Seeds - Wasabi
45 days. This mustard has large green leaves with wavy edges and a fun wasabi-like bite. Easy to grow, this mustard is also cold hardy and vigorous. Don't be mistaken,...
Melon Seeds - Casaba - Bidwell
C. indorus (95 days) This melon originated just a few minutes away from us here in Chico, CA. Bidwell is named after John Bidwell, who was a general in the...
Watermelon Seeds - Icebox - Hime Kansen Hybrid
95 Days to maturity. Citrullus vulgaris. Hime Kansen Hybrid Japanese Watermelon Seeds. Non-GMO, annual, hybrid, heat tolerant, seeded, icebox watermelon. Suitable for growing in garden plots. This Japanese watermelon is...
Corn Seeds - Dent - Ornamental - Bloody Butcher
110 Days to maturity. Zea mays. Bloody Butcher Ornamental Corn Seeds. Non-GMO, annual, open-pollinated, heirloom, Dent Corn. Suitable for growing in garden plots or raised beds. Corn tolerates heat and...
Pepper Seeds - Hot - Scotch Bonnet Yellow
90-100 Days to maturity (from transplant). Capsicum chinense. Scotch Bonnet Yellow Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom, deer resistant, hot pepper with extra hot heat levels. 100,000 to 350,000 Scoville...
Competition Pumpkin Seeds - 400 lb plus
115+ Days to maturity. Non-GMO Competition Pumpkin 400 lb. Plus pumpkin seeds from True Leaf Market come from competition pumpkins that weighed 400 lbs. or more. Whether you want to...
[
{
"featured_image": "files/gourd-seeds-fong-show-hybrid-Comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-premium_48a880ef-8375-474a-890c-1785d724a3cc.png",
"price": 399,
"handle": "gourd-seeds-fong-show-hybrid",
"title": "Gourd Seeds - Fong Show - Hybrid",
"url": "/products/gourd-seeds-fong-show-hybrid",
"available": true
},
{
"featured_image": "files/cabbage-seeds-pak-choi-summer-zest-hybrid-Comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-premium_fb203f7a-3be9-403f-9799-c875e6798907.png",
"price": 399,
"handle": "cabbage-seeds-pak-choi-summer-zest-hybrid",
"title": "Pak Choi Seeds - Summer Zest - Hybrid",
"url": "/products/cabbage-seeds-pak-choi-summer-zest-hybrid",
"available": true
},
{
"featured_image": "products/tomato-giant-belgium-pink-conventional-o-com-wm.jpg",
"secondary_image": "products/MVS-generic-packet-com_f507df09-3677-4001-903b-65eab8ee01ed.jpg",
"price": 299,
"handle": "tomato-seeds-giant-belgium-pink",
"title": "Tomato Seeds - Slicing - Giant Belgium Pink",
"url": "/products/tomato-seeds-giant-belgium-pink",
"available": true
},
{
"featured_image": "products/radish-alpine-gold-com-wm.jpg",
"secondary_image": "products/non-gmo-seed-bag-premium_7f2b1abe-f1b2-4a28-a33e-f243d0f2acd6.png",
"price": 399,
"handle": "radish-seeds-korean-alpine-gold-hybrid",
"title": "Radish Seeds - Korean - Alpine Gold - Hybrid",
"url": "/products/radish-seeds-korean-alpine-gold-hybrid",
"available": true
},
{
"featured_image": "files/radish-seeds-halloween-mix-comp.jpg",
"secondary_image": "products/MVS-generic-packet-com_46ec8194-1e8f-4404-8633-f6383e67bc13.jpg",
"price": 299,
"handle": "radish-seeds-halloween-mix",
"title": "Radish Seeds - Halloween Mix",
"url": "/products/radish-seeds-halloween-mix",
"available": true
},
{
"featured_image": "files/lutz-green-leaf-beet-seeds-Comp.jpg",
"secondary_image": "products/Seed_Packet_d86ca5d7-6a9d-4290-a219-a20437534857.jpg",
"price": 299,
"handle": "lutz-green-leaf-beet-seeds",
"title": "Beet Seeds - Lutz Green Leaf",
"url": "/products/lutz-green-leaf-beet-seeds",
"available": true
},
{
"featured_image": "files/pepper-seeds-sweet-manganji-Comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-premium_5b1f5d41-edfb-4824-8fa8-0c112deb3cad.png",
"price": 399,
"handle": "pepper-seeds-sweet-manganji",
"title": "Pepper Seeds - Sweet - Manganji",
"url": "/products/pepper-seeds-sweet-manganji",
"available": true
},
{
"featured_image": "files/yu-choy-sum-seeds-kosaitai-hon-tsai-tai-Comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-premium_48dc1d08-c12b-40a6-8f18-ff45dddea084.png",
"price": 399,
"handle": "yu-choy-sum-seeds-kosaitai-hon-tsai-tai",
"title": "Yu Choy Sum Seeds - Kosaitai - Hon Tsai Tai",
"url": "/products/yu-choy-sum-seeds-kosaitai-hon-tsai-tai",
"available": true
},
{
"featured_image": "products/red-lentils-bulk-wm_700.jpg",
"secondary_image": "products/16-oz-red-lentil-seed-wm_700_12c4bad8-1653-4029-957f-34193257efc4.jpg",
"price": 996,
"handle": "red-lentils-organic-bulk-grains-foods",
"title": "Red Lentils (Organic) - Bulk Grains & Foods",
"url": "/products/red-lentils-organic-bulk-grains-foods",
"available": true
},
{
"featured_image": "files/au-producer-watermelon-Comp.jpg",
"secondary_image": "products/Seed_Packet_350acce3-dbaa-41e8-ae61-5477fd27791f.jpg",
"price": 359,
"handle": "au-producer-watermelon",
"title": "Watermelon Seeds - Picnic - AU Producer",
"url": "/products/au-producer-watermelon",
"available": true
},
{
"featured_image": "files/watermelon-seeds-hime-kansen-hybrid-comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-premium_2c346086-daf6-4ed3-9c65-b35f438c97b3.png",
"price": 399,
"handle": "watermelon-seeds-hime-kansen-hybrid",
"title": "Watermelon Seeds - Icebox - Hime Kansen Hybrid",
"url": "/products/watermelon-seeds-hime-kansen-hybrid",
"available": false
},
{
"featured_image": "files/crystal-apple-cucumber-seeds-Comp.jpg",
"secondary_image": "products/Seed_Packet_3546a12f-1045-4ee6-b7ae-3d9dd6feb714.jpg",
"price": 299,
"handle": "crystal-apple-cucumber-seeds",
"title": "Cucumber Seeds - Crystal Apple",
"url": "/products/crystal-apple-cucumber-seeds",
"available": true
},
{
"featured_image": "files/Seasonal-Seed-Assortment-Summer-Collection-Comp.jpg",
"secondary_image": "products/Summer-Garden-Supporting-Redo-com-WM.jpg",
"price": 2073,
"handle": "seasonal-seed-assortment-summer",
"title": "Seasonal Seed Assortment - Summer",
"url": "/products/seasonal-seed-assortment-summer",
"available": true
},
{
"featured_image": "files/tomato-old-german-organic-l-com-wm_1222x1222_c7eb92eb-c3e8-4fe3-9b9b-e1de0b492257.jpg",
"secondary_image": "files/Sustainable_1_lb.jpg",
"price": 359,
"handle": "tomato-seeds-old-german-organic",
"title": "Tomato Seeds - Slicing - Old German (Organic)",
"url": "/products/tomato-seeds-old-german-organic",
"available": true
},
{
"featured_image": "files/organic-parisian-carrot-seeds-Comp.jpg",
"secondary_image": "products/SSC-organic-generic-packet-com_7334fdc9-bb25-478d-9706-343d95995962.jpg",
"price": 359,
"handle": "organic-parisian-carrot-seeds",
"title": "Carrot Seeds - Parisian - Organic",
"url": "/products/organic-parisian-carrot-seeds",
"available": true
},
{
"featured_image": "files/1676051454_CopyofSustainable-WM-Black_600x600px_72_1222x1222_29288591-18e5-4b83-804e-11db8bb1bb88.jpg",
"secondary_image": "products/1676051557_CopyofSustainable-WM-Black_600x600px_74_b92c0198-4f17-4487-b839-4fdfc290941a.jpg",
"price": 359,
"handle": "bean-seeds-fava-organic",
"title": "Bean Seeds - Bush - Fava (Organic)",
"url": "/products/bean-seeds-fava-organic",
"available": true
},
{
"featured_image": "products/cucumber-sumter-wm_1.jpg",
"secondary_image": "products/Seed_Pouch_b299afff-36b0-4732-8330-beae6f37bf9c_1_1_1_1_1.jpg",
"price": 299,
"handle": "cucumber-seeds-sumter",
"title": "Cucumber Seeds - Sumter",
"url": "/products/cucumber-seeds-sumter",
"available": true
},
{
"featured_image": "files/organic-german-giant-radish-seeds-comp.jpg",
"secondary_image": "products/SSC-organic-generic-packet-com_5be96dbd-1617-4a84-8f36-defc6d81f549.jpg",
"price": 359,
"handle": "organic-german-giant-radish-seeds",
"title": "Radish Seeds - German Giant - Organic",
"url": "/products/organic-german-giant-radish-seeds",
"available": true
},
{
"featured_image": "files/eggplant-seeds-petch-siam-comp.jpg",
"secondary_image": "products/eggplant-petch-siam-com-wm.jpg",
"price": 399,
"handle": "eggplant-seeds-petch-siam",
"title": "Eggplant Seeds - Petch Siam",
"url": "/products/eggplant-seeds-petch-siam",
"available": true
},
{
"featured_image": "files/hyacinth-bean-purple-moon-Comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-premium_d0a86d05-9fd5-4448-af16-0f92e0b496bf.png",
"price": 399,
"handle": "hyacinth-bean-purple-moon",
"title": "Bean Seeds - Pole - Purple Moon Hyacinth",
"url": "/products/hyacinth-bean-purple-moon",
"available": true
},
{
"featured_image": "files/corn_bloody_butcher_Comp.jpg",
"secondary_image": "files/corn_bloody_butcher_Seed_Comp.jpg",
"price": 329,
"handle": "corn-seeds-ornamental-bloody-butcher",
"title": "Corn Seeds - Dent - Ornamental - Bloody Butcher",
"url": "/products/corn-seeds-ornamental-bloody-butcher",
"available": false
},
{
"featured_image": "products/swiss-chard-pink-seed-wm.jpg",
"secondary_image": "files/MVS_1_lb.jpg",
"price": 299,
"handle": "swiss-chard-pink-seeds",
"title": "Swiss Chard Seeds - Pink Lipstick",
"url": "/products/swiss-chard-pink-seeds",
"available": true
},
{
"featured_image": "files/tomato-seeds-chefs-choice-red-f1-aas-Comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-1-lb-com_b9e84c3c-bdcb-4e5f-a595-8b2edb6b3eda.jpg",
"price": 459,
"handle": "tomato-seeds-chefs-choice-red-f1-aas",
"title": "Tomato Seeds - Slicing - Chef's Choice Red Hybrid AAS",
"url": "/products/tomato-seeds-chefs-choice-red-f1-aas",
"available": true
},
{
"featured_image": "files/pepper_hot_yellow_scotch_bonnet_Comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-1-lb-com_59ce36a7-489c-4390-901b-a5a65f0194e1.jpg",
"price": 299,
"handle": "pepper-seeds-hot-yellow-scotch-bonnet",
"title": "Pepper Seeds - Hot - Scotch Bonnet Yellow",
"url": "/products/pepper-seeds-hot-yellow-scotch-bonnet",
"available": false
},
{
"featured_image": "files/competition-pumpkin-400-lb-plus-Comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-1-oz-sm_a30cc644-87e9-45ef-86b4-d54d95599612.png",
"price": 997,
"handle": "competition-pumpkin-400-lb-plus",
"title": "Competition Pumpkin Seeds - 400 lb plus",
"url": "/products/competition-pumpkin-400-lb-plus",
"available": false
},
{
"featured_image": "files/zucchini-squash-seeds-summer-trieste-white-Comp_427d98d7-c317-458f-a785-936f2cc5bbfe.jpg",
"secondary_image": "products/Seed_Pouch_1_67945b80-63eb-422e-a24e-8234f60a47ff.jpg",
"price": 299,
"handle": "zucchini-squash-seeds-summer-trieste-white",
"title": "Squash Seeds - Summer - Trieste White Zucchini",
"url": "/products/zucchini-squash-seeds-summer-trieste-white",
"available": true
},
{
"featured_image": "files/radish-seeds-chinese-green-luobo-improved-comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-premium_c32d3411-4635-424f-a0fe-cd69f08dc76d.png",
"price": 399,
"handle": "radish-seeds-chinese-green-luobo-improved",
"title": "Radish Seeds - Chinese - Green Meat Luobo",
"url": "/products/radish-seeds-chinese-green-luobo-improved",
"available": true
},
{
"featured_image": "files/organic-black-spanish-round-radish-seeds-Comp.jpg",
"secondary_image": "products/SSC-organic-generic-packet-com_60257a4e-2192-4316-917d-8889b74e9c83.jpg",
"price": 359,
"handle": "organic-black-spanish-round-radish-seeds",
"title": "Radish Seeds - Black Spanish Round - Organic",
"url": "/products/organic-black-spanish-round-radish-seeds",
"available": true
},
{
"featured_image": "files/eggplant-seeds-konasu-Comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-premium_76247030-facc-43c4-89a0-4e6701f0edac.png",
"price": 399,
"handle": "eggplant-seeds-konasu",
"title": "Eggplant Seeds - Konasu",
"url": "/products/eggplant-seeds-konasu",
"available": true
},
{
"featured_image": "files/melon-seeds-banana.jpg",
"secondary_image": "products/Seed_Packet_1_49f66594-bfda-49fa-96bc-71db6f92dfcd.jpg",
"price": 199,
"handle": "melon-seeds-banana",
"title": "Melon Seeds - Banana",
"url": "/products/melon-seeds-banana",
"available": true
},
{
"featured_image": "products/1674503837_CopyofKitazawa-WM-White_600x600px_21.jpg",
"secondary_image": "products/1674503836_CopyofKItazawa-WM-Green_600x600px_41.jpg",
"price": 399,
"handle": "mustard-wasabi-seeds",
"title": "Mustard Seeds - Wasabi",
"url": "/products/mustard-wasabi-seeds",
"available": true
},
{
"featured_image": "files/organic-bidwell-casaba-melon-comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-com-sm_1_cfbdb904-f35b-4a4a-9e9c-27b5edb0bd0c.jpg",
"price": 339,
"handle": "organic-bidwell-casaba-melon",
"title": "Melon Seeds - Casaba - Bidwell",
"url": "/products/organic-bidwell-casaba-melon",
"available": true
}
]