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
682 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" }
Chinese Cabbage Seeds - Yuki Hybridmid size pouch type seed packaging for - Chinese Cabbage Yuki Hybrid
-0
Chinese Cabbage Seeds - Yuki Hybrid
Starting at $3.99
Eggplant Seeds - E-Star - Hybridmid size pouch type seed packaging for - Eggplant E-Star Hybrid
-0
Eggplant Seeds - E-Star - Hybrid
Starting at $3.99
Tomato Seeds - Slicing - Chef's Choice BiColor Hybrid AASsmall size packet type seed packaging for - Tomato Slicing Chefs Choice BiColor Hybrid AAS
-0
AAS Winner
Tomato Seeds - Slicing - Chef's Choice BiColor Hybrid AAS
Starting at $3.99
Squash Seeds - Winter - Indian Brave F1small size packet type seed packaging for - Squash Winter Indian Brave F1
-0
Squash Seeds - Winter - Indian Brave F1
Starting at $3.99
Squash Seeds, Summer - Lunar Eclipse F1 - Organicsmall size packet type seed packaging for - Squash Summer Lunar Eclipse F1 Organic
-0
Organic
Squash Seeds, Summer - Lunar Eclipse F1 - Organic
Starting at $5.39
Daffodil Bulbs - Large Cupped 'Carlton'
-0
Daffodil Bulbs - Large Cupped 'Carlton'
Starting at $19.99
Watermelon Seeds - Icebox - Tiger Baby Hybrid (Organic)mid size pouch type seed packaging for - Watermelon Icebox Tiger Baby Hybrid Organic
-0
Organic
Watermelon Seeds - Icebox - Tiger Baby Hybrid (Organic)
Starting at $6.79
Pak Choi Seeds - Fun Jen Hybridmid size pouch type seed packaging for - Pak Choi Fun Jen Hybrid
-0
Pak Choi Seeds - Fun Jen Hybrid
Starting at $3.99
Watermelon Seeds - Icebox - Tiger Doll Hybridmid size pouch type seed packaging for - Watermelon Icebox Tiger Doll Hybrid
-0
Watermelon Seeds - Icebox - Tiger Doll Hybrid
Starting at $5.99
Squash Seeds - Winter - Sugaretti F1 AASsmall size packet type seed packaging for - Squash Winter Sugaretti F1 AAS
-0
Squash Seeds - Winter - Sugaretti F1 AAS
Starting at $3.99
Melon Seeds - Honeydew - Bodacious Hybridmid size pouch type seed packaging for - Melon Honeydew Bodacious Hybrid
-0
Melon Seeds - Honeydew - Bodacious Hybrid
Starting at $5.29
Chinese Cabbage Seeds - WR 70 Days Hybridmid size pouch type seed packaging for - Chinese Cabbage WR 70 Days Hybrid
-0
Chinese Cabbage Seeds - WR 70 Days Hybrid
Starting at $3.99
Zucchini Seeds - Storrs Green F1 Hybrid
-0
Zucchini Seeds - Storrs Green F1 Hybrid
Starting at $4.49
Hyacinth Bulbs - Blue Jacket
-0
Hyacinth Bulbs - Blue Jacket
Starting at $13.99
Pumpkin Seeds - Autumn Moon and Ghoulie Mixmid size pouch type seed packaging for - Zinnia Magellan Series Orange
-0
Pumpkin Seeds - Autumn Moon and Ghoulie Mix
Starting at $3.99
Pepper Seeds - Sweet - Pinot Noir Hybridmid size pouch type seed packaging for - Pepper Sweet Pinot Noir Hybrid
-0
Pepper Seeds - Sweet - Pinot Noir Hybrid
Starting at $4.39
Squash Seeds - Winter - Zao Feng Hybridmid size pouch type seed packaging for - Squash Winter Zao Feng Hybrid
-0
Squash Seeds - Winter - Zao Feng Hybrid
Starting at $3.99
Corn Seeds - Sweet - Inspiration Hybridmid size pouch type seed packaging for - Zinnia Magellan Series Orange
-68%
Corn Seeds - Sweet - Inspiration Hybrid
Starting at $1.99
Chinese Cabbage Seeds - Monument - Hybridmid size pouch type seed packaging for - Chinese Cabbage Monument Hybrid
-0
Chinese Cabbage Seeds - Monument - Hybrid
Starting at $3.99
Chinese Cabbage Seeds - Mansu - Hybridmid size pouch type seed packaging for - Chinese Cabbage Mansu Hybrid
-0
Chinese Cabbage Seeds - Mansu - Hybrid
Starting at $3.99
Watermelon Seeds - Mini - Sweet Beauty HybridWatermelon Seeds - Mini - Sweet Beauty Hybrid
-0
AAS Winner
Watermelon Seeds - Mini - Sweet Beauty Hybrid
Starting at $7.69
Pak Choi Seeds - Da Cheong Chae Hybridmid size pouch type seed packaging for - Pak Choi Da Cheong Chae Hybrid
-0
Pak Choi Seeds - Da Cheong Chae Hybrid
Starting at $3.99
Gourd Seeds - UFO F1mid size pouch type seed packaging for - Gourd UFO F1
-0
Gourd Seeds - UFO F1
Starting at $3.99
Mimulus Seeds - Magic Ball Mixmid size pouch type seed packaging for - Mimulus Magic Ball Mix
-0
Mimulus Seeds - Magic Ball Mix
Starting at $4.39
Sunflower Seeds - Santa Fe Sunrise
Starting at $4.59
Daffodil Bulbs - Mixed
$19.99
Asparagus Crowns - Millenium
Starting at $9.48
Begonia Tubers - Samba Pastel Mixture
$9.70 $19.39
Seed Potatoes - Lamoka (Organic)
Starting at $9.78
Begonia Tubers - Bi-Color Picotee Mixture
$9.00 $17.99
Eggplant Seeds - Eclipse F1
Starting at $6.39
Rhubarb Crowns - Crimson Red
Starting at $13.98
[ { "featured_image": "files/chinese-cabbage-seeds-yuki-hybrid-Comp.jpg", "secondary_image": "products/non-gmo-seed-bag-premium_baa9ea0f-ccf2-4827-865e-9d471ecb033c.png", "price": 399, "handle": "chinese-cabbage-seeds-yuki-hybrid", "title": "Chinese Cabbage Seeds - Yuki Hybrid", "url": "/products/chinese-cabbage-seeds-yuki-hybrid", "available": true }, { "featured_image": "products/eggplant-e-star-com-wm.jpg", "secondary_image": "products/non-gmo-seed-bag-premium_594a0b5c-10d0-46e4-bcf3-0781d500b6d1.png", "price": 399, "handle": "eggplant-seeds-e-star-hybrid", "title": "Eggplant Seeds - E-Star - Hybrid", "url": "/products/eggplant-seeds-e-star-hybrid", "available": true }, { "featured_image": "files/Sunflower-Santa-Fe-Sunrise-F1-Comp.jpg", "secondary_image": "products/sunflower-santa-fe-com-wm.jpg", "price": 459, "handle": "sunflower-seeds-santa-fe-sunrise-f1", "title": "Sunflower Seeds - Santa Fe Sunrise", "url": "/products/sunflower-seeds-santa-fe-sunrise-f1", "available": false }, { "featured_image": "products/tomato-chefs-choice-bicolor-f1-hybrid-l-com-wm.jpg", "secondary_image": "products/MVS-generic-packet-com_3caa0e02-91c2-43fb-afe7-2973ad4d6404.jpg", "price": 399, "handle": "tomato-seeds-chefs-choice-bicolor-f1-aas", "title": "Tomato Seeds - Slicing - Chef's Choice BiColor Hybrid AAS", "url": "/products/tomato-seeds-chefs-choice-bicolor-f1-aas", "available": true }, { "featured_image": "files/Daffodil-Mixed-Trumpets-wm-comp.jpg", "secondary_image": "", "price": 1999, "handle": "daffodil-bulbs-mixed-trumpets", "title": "Daffodil Bulbs - Mixed", "url": "/products/daffodil-bulbs-mixed-trumpets", "available": false }, { "featured_image": "files/squash-seeds-winter-indian-brave-f1-Comp.jpg", "secondary_image": "products/MVS-generic-packet-com_9e8aa4fc-6b77-47cb-9916-7088f7c65fbd.jpg", "price": 399, "handle": "squash-seeds-winter-indian-brave-f1", "title": "Squash Seeds - Winter - Indian Brave F1", "url": "/products/squash-seeds-winter-indian-brave-f1", "available": true }, { "featured_image": "files/squash-seeds-summer-lunar-eclipse-f1-organic-Comp.jpg", "secondary_image": "products/MVS-generic-packet-com_f87aaee3-7037-4238-b6ba-78198014ffb8.jpg", "price": 539, "handle": "squash-seeds-summer-lunar-eclipse-f1-organic", "title": "Squash Seeds, Summer - Lunar Eclipse F1 - Organic", "url": "/products/squash-seeds-summer-lunar-eclipse-f1-organic", "available": true }, { "featured_image": "files/Daffodil-Large-Cupped-Carlton-comp.jpg", "secondary_image": "", "price": 1999, "handle": "daffodil-bulbs-large-cupped-carlton", "title": "Daffodil Bulbs - Large Cupped 'Carlton'", "url": "/products/daffodil-bulbs-large-cupped-carlton", "available": true }, { "featured_image": "files/watermelon-seeds-tiger-baby-f1-organic-Comp.jpg", "secondary_image": "products/non-gmo-seed-bag-1-lb-com_850d1caf-4897-44fc-bcbf-17b105e59d07.jpg", "price": 679, "handle": "watermelon-seeds-tiger-baby-f1-organic", "title": "Watermelon Seeds - Icebox - Tiger Baby Hybrid (Organic)", "url": "/products/watermelon-seeds-tiger-baby-f1-organic", "available": true }, { "featured_image": "files/cabbage-seeds-pak-choi-fun-jen-hybrid-comp.jpg", "secondary_image": "products/non-gmo-seed-bag-premium_6ffd8d32-edf6-4883-9145-f831bf526313.png", "price": 399, "handle": "cabbage-seeds-pak-choi-fun-jen-hybrid", "title": "Pak Choi Seeds - Fun Jen Hybrid", "url": "/products/cabbage-seeds-pak-choi-fun-jen-hybrid", "available": true }, { "featured_image": "files/Asparagus_-_Millenium.jpg", "secondary_image": "files/asparagus_wb_comp_d5f66b87-b176-46c5-a126-0752d9c96fc5.jpg", "price": 948, "handle": "asparagus-crowns-millenium", "title": "Asparagus Crowns - Millenium", "url": "/products/asparagus-crowns-millenium", "available": false }, { "featured_image": "files/watermelon-seeds-tiger-doll-f1-Comp.jpg", "secondary_image": "products/non-gmo-seed-bag-1-lb-com_1001f9db-e8f7-4ecd-a320-e16669c2af41.jpg", "price": 599, "handle": "watermelon-seeds-tiger-doll-f1", "title": "Watermelon Seeds - Icebox - Tiger Doll Hybrid", "url": "/products/watermelon-seeds-tiger-doll-f1", "available": true }, { "featured_image": "files/squash-seeds-winter-sugaretti-f1-aas-Comp.jpg", "secondary_image": "products/MVS-generic-packet-com_883a8ae8-4c9e-4bcd-8e9d-ace9bdd5c2cc.jpg", "price": 399, "handle": "squash-seeds-winter-sugaretti-f1-aas", "title": "Squash Seeds - Winter - Sugaretti F1 AAS", "url": "/products/squash-seeds-winter-sugaretti-f1-aas", "available": true }, { "featured_image": "files/1736452317_begonia_tubers_samba_pastel_mixture_comp_b6a3397c-3db6-46f4-96fe-edef0b985a97.jpg", "secondary_image": "", "price": 970, "handle": "begonia-tubers-samba-pastel-mixture", "title": "Begonia Tubers - Samba Pastel Mixture", "url": "/products/begonia-tubers-samba-pastel-mixture", "available": false }, { "featured_image": "files/melon-seeds-bodacious-f1-Comp.jpg", "secondary_image": "products/non-gmo-seed-bag-1-lb-com_4b1f612a-5aa9-439a-8fbd-e19b20db6ec2.jpg", "price": 529, "handle": "melon-seeds-bodacious-f1", "title": "Melon Seeds - Honeydew - Bodacious Hybrid", "url": "/products/melon-seeds-bodacious-f1", "available": true }, { "featured_image": "products/cabbage-wr-70-com-wm_42b25355-1261-415a-964c-a2219598e67e.jpg", "secondary_image": "products/non-gmo-seed-bag-premium_8ea15a69-9eda-4b07-8254-5ac5f4e59048.png", "price": 399, "handle": "chinese-cabbage-seeds-wr-70-days-hybrid", "title": "Chinese Cabbage Seeds - WR 70 Days Hybrid", "url": "/products/chinese-cabbage-seeds-wr-70-days-hybrid", "available": true }, { "featured_image": "files/1743706913_squash_summer_storrs_green_f1_5991e216-b04f-4f3d-a2a4-b7a689a8302f.jpg", "secondary_image": "", "price": 449, "handle": "zucchini-seeds-storrs-green-hybrid", "title": "Zucchini Seeds - Storrs Green F1 Hybrid", "url": "/products/zucchini-seeds-storrs-green-hybrid", "available": true }, { "featured_image": "files/1736444271_potato_lamoka_organic_comp_e29f3407-e29e-4025-a4b5-d22ac2c96e99.jpg", "secondary_image": "files/1736439502_white_woven_large_small_burlap_bags_comp_55b00b9e-3f22-4af5-b8b9-4d8ed20ab15c.jpg", "price": 978, "handle": "seed-potatoes-lamoka-organic", "title": "Seed Potatoes - Lamoka (Organic)", "url": "/products/seed-potatoes-lamoka-organic", "available": false }, { "featured_image": "files/blue-jacket-comp.jpg", "secondary_image": "", "price": 1399, "handle": "hyacinth-bulbs-blue-jacket", "title": "Hyacinth Bulbs - Blue Jacket", "url": "/products/hyacinth-bulbs-blue-jacket", "available": true }, { "featured_image": "files/1741810394_pumpkin_autumn_moon_ghoulie_mixed_wm_comp_5603b88f-0498-44ea-83db-9d49980dfcc2.jpg", "secondary_image": "files/MVS_1_lb.jpg", "price": 399, "handle": "pumpkin-seeds-autumn-moon-and-ghoulie-mix", "title": "Pumpkin Seeds - Autumn Moon and Ghoulie Mix", "url": "/products/pumpkin-seeds-autumn-moon-and-ghoulie-mix", "available": true }, { "featured_image": "files/pepper-seeds-sweet-pinot-noir-f1-comp.jpg", "secondary_image": "products/non-gmo-seed-bag-1-lb-com_a054b8ea-eb6a-48c5-a810-b1218e1f3815.jpg", "price": 439, "handle": "pepper-seeds-sweet-pinot-noir-f1", "title": "Pepper Seeds - Sweet - Pinot Noir Hybrid", "url": "/products/pepper-seeds-sweet-pinot-noir-f1", "available": true }, { "featured_image": "files/squash-seeds-winter-zeo-feng-hybrid-comp.jpg", "secondary_image": "products/non-gmo-seed-bag-premium_045bdbb9-84ef-4d2a-b86b-b4fc92781f55.png", "price": 399, "handle": "squash-seeds-winter-zeo-feng-hybrid", "title": "Squash Seeds - Winter - Zao Feng Hybrid", "url": "/products/squash-seeds-winter-zeo-feng-hybrid", "available": true }, { "featured_image": "files/1736451629_begonia_tubers_bi_color_picotee_mixture_comp_56b8a575-d09c-4d1a-b7fc-a109ae984e69.jpg", "secondary_image": "", "price": 900, "handle": "begonia-tubers-bi-color-picotee-mixture", "title": "Begonia Tubers - Bi-Color Picotee Mixture", "url": "/products/begonia-tubers-bi-color-picotee-mixture", "available": false }, { "featured_image": "files/eggplant-seeds-eclipse-f1-Comp.jpg", "secondary_image": "products/non-gmo-seed-bag-1-lb-com_17fbad14-d853-4c75-a525-b3069a704185.jpg", "price": 639, "handle": "eggplant-seeds-eclipse-f1", "title": "Eggplant Seeds - Eclipse F1", "url": "/products/eggplant-seeds-eclipse-f1", "available": false }, { "featured_image": "files/sweet_corn_inspiration_hybrid_wm_comp.jpg", "secondary_image": "files/MVS_1_lb.jpg", "price": 199, "handle": "corn-seeds-sweet-inspiration-hybrid", "title": "Corn Seeds - Sweet - Inspiration Hybrid", "url": "/products/corn-seeds-sweet-inspiration-hybrid", "available": true }, { "featured_image": "files/chinese-cabbage-seeds-monument-hybrid-comp.jpg", "secondary_image": "products/non-gmo-seed-bag-premium_1482616a-60c2-423b-ae7c-5a675c655d98.png", "price": 399, "handle": "chinese-cabbage-seeds-monument-hybrid", "title": "Chinese Cabbage Seeds - Monument - Hybrid", "url": "/products/chinese-cabbage-seeds-monument-hybrid", "available": true }, { "featured_image": "files/chinese-cabbage-seeds-mansu-hybrid-comp.jpg", "secondary_image": "products/non-gmo-seed-bag-premium_b549d38d-3994-49c0-9697-eed37cfe9ff9.png", "price": 399, "handle": "chinese-cabbage-seeds-mansu-hybrid", "title": "Chinese Cabbage Seeds - Mansu - Hybrid", "url": "/products/chinese-cabbage-seeds-mansu-hybrid", "available": true }, { "featured_image": "files/watermelon-sweet-beauty-hybrid-seed-wm_700_1222x1222_ac7dd5c5-200d-4a50-ada7-0df2e1efb79f.jpg", "secondary_image": "products/Seed_Pouch_1_1_1_dd3b1bca-1c43-42a1-9cfe-122c51051062.jpg", "price": 769, "handle": "watermelon-sweet-beauty-hybrid-seeds", "title": "Watermelon Seeds - Mini - Sweet Beauty Hybrid", "url": "/products/watermelon-sweet-beauty-hybrid-seeds", "available": true }, { "featured_image": "files/cabbage-seeds-pak-choi-da-cheong-chae-hybrid-comp.jpg", "secondary_image": "products/non-gmo-seed-bag-premium_8dd25598-9693-45c7-9085-4771b4d7e3c6.png", "price": 399, "handle": "cabbage-seeds-pak-choi-da-cheong-chae-hybrid", "title": "Pak Choi Seeds - Da Cheong Chae Hybrid", "url": "/products/cabbage-seeds-pak-choi-da-cheong-chae-hybrid", "available": true }, { "featured_image": "files/gourd-seeds-ufo-f1-comp.jpg", "secondary_image": "products/non-gmo-seed-bag-1-lb-com_b38c89af-812a-4ccc-8033-0a0027da8350.jpg", "price": 399, "handle": "gourd-seeds-ufo-f1", "title": "Gourd Seeds - UFO F1", "url": "/products/gourd-seeds-ufo-f1", "available": true }, { "featured_image": "files/Rhubarb_-_Crimson_Red.jpg", "secondary_image": "", "price": 1398, "handle": "rhubarb-roots-crimson-red", "title": "Rhubarb Crowns - Crimson Red", "url": "/products/rhubarb-roots-crimson-red", "available": false }, { "featured_image": "files/mimulus-magic-ball-mix-flower-seeds-comp.jpg", "secondary_image": "products/non-gmo-sprouting-seed_fa86cdf2-163a-47a4-b2d7-209f8b58ad03.jpg", "price": 439, "handle": "mimulus-magic-ball-mix-flower-seeds", "title": "Mimulus Seeds - Magic Ball Mix", "url": "/products/mimulus-magic-ball-mix-flower-seeds", "available": true } ]