May marks the shift into early summer conditions in the warm-winter zones, and gardens respond fast with rapid growth. Warm-season crops should be planted and growing strongly now, and succession sowing keeps harvests coming even as temperatures climb. Stay ahead of heat stress by mulching, watering consistently, and planting in the coolest part of the day — and in the hottest areas, begin planning for shade cloth and other summer protection.
Indoors (fresh harvests):
-
Microgreens: peas, broccoli, sunflowers, arugula
-
Sprouts: alfalfa, broccoli, radish, mung
-
Herbs & greens under lights: chives, parsley, mint
Transplants to move outdoors: Most warm-season crops should already be in the ground. If you have heat-tolerant starts on hand, get them out early in the month before conditions get too stressful.
Crops that can be directly sown outdoors in May: okra, sweet potato slips, cowpeas, yard-long beans, Malabar spinach, Armenian cucumber, and other heat-tolerant varieties. Standard cucumbers, squash, and beans can still go in early May in many areas.
Cover crops: cowpeas, sunn hemp, buckwheat, sorghum-sudangrass
Note: Cool-season crops are wrapping up. The focus shifts to heat-tolerant varieties and keeping the soil covered.
Tip: A Southern California zone 10 can be very different from a Florida zone 10. 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
Wildflower Seeds - Bee Mix
50-365 Days to maturity. Bee Friendly Wildflower Seeds Mix. A non-GMO mix of annuals and perennial bee-friendly wildflowers for zones 3-9. The Bee Friendly Wildflower Mix grows some of the...
Strawberry Seeds - Berries Galore Hybrid Pink
Package of 100 seeds. 75 days. Everbearing runner variety. In full sun, medium-large fruit saturated with sweetness and nutritious goodness; a fast grower; can be harvested every 3 to 4...
Strawberry Seeds - Berries Basket White Hybrid
Berri Basket White Hyrbid strawberries are ready in 85 days. Strawberry variety is well suited for baskets. Hardy to zone 5, the ever-bearing, runnerless, compact and bushy plants bear large,...
Hollyhock Seeds - Summer Carnival Mix
112-119 days to maturity. Alcea rosea. Hollyhock Summer Carnival Mixture Seeds. Non-GMO, Annual or Biennial. Summer Carnival Mix hollyhock seeds promise to turn any stale flower bed into a sensational...
Rhubarb Seeds - Victoria
Non-GMO Victoria Rhubarb Seeds are a perennial heirloom that you want to include in your garden. An open-pollinated strain, Victoria Rhubarb can be raised from seed. Juicy, large stalks are...
Hibiscus Seeds - Luna Series
70-84 days to maturity. Hibiscus moscheutos. Hibiscus Luna Series Seeds. Non-GMO, F1 hybrid, perennial. Luna Series hibiscus seeds promise robust and long-lasting blooms to your garden when other flowers can...
Gaillardia Seeds - Blanket Flower
84-91 Days to maturity. Gaillardia aristata. Gaillardia Blanket Flower Seeds. Non-GMO, Perennial. Blanket Flower gaillardia seeds promise a vibrant and perennial touch of authentic American color in your garden. Blanket...
Strawberry Seeds - Mignonette
Mignonette Strawberry Seeds. Heirloom. Non GMO. Perennial. Fragaria vesca. AKA: Alpine Strawberry or Wild Strawberry. 80-85 days. The French Mignonette strawberry is unlike any you‚ve bought from the grocery store,...
Hollyhock Seeds - Indian Spring
2nd-year maturity. Alcea rosea. Hollyhock Indian Spring Seeds. Non-GMO, Perennial/Biennial. Indian Spring Mix hollyhock is easy to grow from seed and ideal for gardens with mild winters across North America....
Rudbeckia Seeds - Cherry Brandy
91-105 days maturity. Rudbeckia hirta. Rudbeckia Cherry Brandy Seeds. Non-GMO, Perennial. Ornamental. Cherry Brandy seeds grow one of the summer's most vibrant and exclusive rudbeckias, compact and tidy 18-24 inch...
Kniphofia Seeds - Flamenco
112-126 Days to maturity. Kniphofia uvaria. Flamenco Kniphofia Seeds. Non-GMO, organic, Perennial. Flamenco kniphofia seeds promise exotic, unmistakable, and award-winning blooms native to the cool ocean regions of South Africa's...
Agastache Seeds - Arizona Sun
77-84 Days to maturity. Agastache x hybrida’Arizona Sun’. Arizona Sun Agastache Seeds. Non-GMO, open-pollinated, Premium Quality Seeds, Perennial. Open Pollinated. Arizona Sun Agastache is a rare fragrant and showy, yet...
Geum Seeds - Mrs. Bradshaw
2nd-year maturity. Geum chiloense. Mrs. Bradshaw Geum Seeds. Non-GMO, open-pollinated, Premium Quality Seeds, Perennial. Open Pollinated. Mrs. Bradshaw seeds promise brilliant, hardy, and herbaceous geum perennials that grow as effortlessly...
Sedum Seeds - Dragons Blood
112-119 days to maturity. Sedum spurium. Sedum Dragon’s Blood Seeds. Non-GMO, Perennial. Ornamental. Dragons Blood’s seeds grow a compact, yet dazzling, AAS award-winning alternative to the classic American Sedum. Dragon's...
Penstemon Seeds - Palmers
120 Days to maturity. Penstemon palmeri. Palmer's Penstemon Seeds. Non-GMO, open-pollinated, Premium Quality Seeds, perennial. Growing Palmer's penstemon seeds this season is an effortless and vibrant way to splash some...
Roselle Seeds - Asian Sour Leaf (Hibiscus)
70-90 day maturity. Hibiscus sabdariffa. Asian Sour Leaf Roselle Seeds. Non-GMO, Cool-season perennial heirloom. This unique perennial can be grown as an annual in areas where it will not survive...
Spinach Seeds - Red Malabar
70 days. Basella rubra. Red Malabar Spinach Seeds. Non-GMO, warm-season annual, heirloom, open-pollinated. This crop is suitable for trellised garden plots, raised beds, and large containers. Red Malabar is a...
Yarrow Seeds - Red
Achillea millefolium rubra Packet contains 0.2 grams, approximately 1200 seeds. Large red flower clusters stand out against feathery green foliage. Red Yarrow Direct sow in fall or spring, or start...
Salvia Seeds - Blue Queen
2nd year maturity. Salvia nemorosa. Salvia Blue Queen Seeds. Non-GMO, Perennial. Ornamental. Blue Queen salvia seeds are elegant, vibrant, and hardy. They will grow where other salvia plants would decline....
Sweet Pea Seeds - Everlasting
2nd Year Maturity. Lathyrus latifolius. Sweet Pea Everlasting Seeds. Non-GMO, Perennial, open-pollinated. Everlasting sweet pea seeds are a timeless and brilliant addition to any home or garden year round. Sweet...
Hollyhock Seeds - Powderpuffs Double Mix
2nd-year maturity. Alcea rosea. Hollyhock Powderpuffs Double Mix Seeds. Non-GMO, Perennial/Biennial. Powderpuffs Double Mix hollyhock seeds are an ideal plant to rejuvenate a tired garden into a stunning and vibrant...
Hollyhock Seeds - Chaters Double Mixture
2nd-year maturity. Alcea rosea. Hollyhock Chater's Double Mixture Seeds. Non-GMO, Perennial/Biennial. Chater's Double Mixture hollyhock seeds promise to turn any stale bedding into a sensational and eye-catching garden this season....
Coffee Seeds - Coffea Arabica Nana
About 3-4 years to harvest. Coffea arabica 'Nana'. Nana Arabian Coffee Seeds. Non-GMO, perennial, open-pollinated, tropical, dwarf coffee tree. Nana Arabian Coffee tree seeds grow dwarf coffee plants that will...
Rhubarb Crowns - Spring - Canadian Red
This is a pre-order item and is expected to ship from March to April. Other seeds, supplies, or kits ordered with this product will ship separately. This product only ships...
Rhubarb Crowns - Spring - Valentine
This is a pre-order item and is expected to ship from March to April. Other seeds, supplies, or kits ordered with this product will ship separately. This product only ships...
Columbine Seeds - Double Mixed
240-300 Days to maturity. Aquilegia vulgaris. Columbine Double Mixed Seeds. Non-GMO, Perennial, open-pollinated, fall or spring-planted ornamental flower. Heirloom. Double Mixed Columbine seeds grow a spectacular garden favorite perennial that...
[
{
"featured_image": "files/Roselle-Seeds-Asian-Sour-Leaf-Hibiscus-Comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-premium_f9e4017e-0706-4ca8-8b04-6c1f79fd96d2.png",
"price": 399,
"handle": "hibiscus-seeds-asian-sour-leaf-roselle",
"title": "Roselle Seeds - Asian Sour Leaf (Hibiscus)",
"url": "/products/hibiscus-seeds-asian-sour-leaf-roselle",
"available": false
},
{
"featured_image": "files/Wildflower-Seeds-Bee-Mix-Comp.jpg",
"secondary_image": "products/bee-friendly-wildflower-mix-wm_700.jpg",
"price": 299,
"handle": "bee-friendly-wildflower-mix-seeds",
"title": "Wildflower Seeds - Bee Mix",
"url": "/products/bee-friendly-wildflower-mix-seeds",
"available": true
},
{
"featured_image": "files/strawberry-berries-galore-hybrid-pink-wm_700_1222x1222_e00ff053-dcc7-4f33-af49-1ee0d4d73eb3.jpg",
"secondary_image": "products/Seed_Pouch_1_1_1282fbd4-6c0c-45dd-a8b2-35373f8362d8.jpg",
"price": 749,
"handle": "strawberry-berries-galore-hybrid-pink-seeds",
"title": "Strawberry Seeds - Berries Galore Hybrid Pink",
"url": "/products/strawberry-berries-galore-hybrid-pink-seeds",
"available": true
},
{
"featured_image": "files/Spinach-Seeds-Red-Malabar-Spinach-comp.jpg",
"secondary_image": "",
"price": 399,
"handle": "spinach-seeds-red-malabar-spinach",
"title": "Spinach Seeds - Red Malabar",
"url": "/products/spinach-seeds-red-malabar-spinach",
"available": false
},
{
"featured_image": "files/strawberry-berries-basket-white-hybrid-seeds-comp.jpg",
"secondary_image": "products/Seed_Pouch_1_e7f5ebb7-a59d-4172-b3a3-c969e485a0b5.jpg",
"price": 749,
"handle": "strawberry-berries-basket-white-hybrid-seeds",
"title": "Strawberry Seeds - Berries Basket White Hybrid",
"url": "/products/strawberry-berries-basket-white-hybrid-seeds",
"available": true
},
{
"featured_image": "files/hollyhock-summer-carnival-mix-wm_700_1222x1222_95a2f590-fbc1-46a9-8e61-48f99c1029fc.jpg",
"secondary_image": "products/non-gmo-seed-bag-4-oz-sm_4de9521d-cbf7-44de-bfdb-0a69fd016764.png",
"price": 299,
"handle": "hollyhock-summer-carnival-mix-html",
"title": "Hollyhock Seeds - Summer Carnival Mix",
"url": "/products/hollyhock-summer-carnival-mix-html",
"available": true
},
{
"featured_image": "files/red-yarrow-Comp.jpg",
"secondary_image": "products/Seed_Packet_070edfca-9444-478d-beb6-5216d4beb25d.jpg",
"price": 299,
"handle": "red-yarrow",
"title": "Yarrow Seeds - Red",
"url": "/products/red-yarrow",
"available": false
},
{
"featured_image": "files/rhubarb-victoria-seeds-comp.jpg",
"secondary_image": "products/Seed_Pouch_1_0d6d0224-ad78-41d5-b877-ef02bc8e4596.jpg",
"price": 369,
"handle": "rhubarb-victoria-seeds",
"title": "Rhubarb Seeds - Victoria",
"url": "/products/rhubarb-victoria-seeds",
"available": true
},
{
"featured_image": "files/hibiscus-luna-series-flower-seeds-comp.jpg",
"secondary_image": "products/hibiscus-luna-series-rose-seed-wm_700.jpg",
"price": 1536,
"handle": "hibiscus-luna-series-flower-seeds",
"title": "Hibiscus Seeds - Luna Series",
"url": "/products/hibiscus-luna-series-flower-seeds",
"available": true
},
{
"featured_image": "files/gaillardia-blanket-flower-comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-4-oz-sm_170f1ca6-3d80-496a-ba1b-d75472038a4f.png",
"price": 299,
"handle": "gaillardia-blanket-flower",
"title": "Gaillardia Seeds - Blanket Flower",
"url": "/products/gaillardia-blanket-flower",
"available": true
},
{
"featured_image": "files/strawberry-seeds-mignonette-Comp.jpg",
"secondary_image": "products/MVS-generic-packet-com_140b6686-82af-424b-818e-a5c90aa3a1f7.jpg",
"price": 379,
"handle": "strawberry-seeds-mignonette",
"title": "Strawberry Seeds - Mignonette",
"url": "/products/strawberry-seeds-mignonette",
"available": true
},
{
"featured_image": "files/hollyhock-indian-spring-flower-seeds-Comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-4-oz-sm_bb2b2c11-588e-440b-be4d-353b02c3c6da.png",
"price": 299,
"handle": "hollyhock-indian-spring-flower-seeds",
"title": "Hollyhock Seeds - Indian Spring",
"url": "/products/hollyhock-indian-spring-flower-seeds",
"available": true
},
{
"featured_image": "files/rudbeckia-cherry-brandy-flower-seed-comp.jpg",
"secondary_image": "products/non-gmo-sprouting-seed_1b9a0e43-7d51-4721-a36a-f8c5eb2ca3af.jpg",
"price": 579,
"handle": "rudbeckia-cherry-brandy-flower-seed",
"title": "Rudbeckia Seeds - Cherry Brandy",
"url": "/products/rudbeckia-cherry-brandy-flower-seed",
"available": true
},
{
"featured_image": "files/salvia-blue-queen-flowers-wm_700_1222x1222_e0aba579-b87a-49c1-b3cb-be65234fc054.jpg",
"secondary_image": "products/salvia-queen-series-rose-seed-wm_700.jpg",
"price": 374,
"handle": "salvia-queen-series-flower-seeds",
"title": "Salvia Seeds - Blue Queen",
"url": "/products/salvia-queen-series-flower-seeds",
"available": false
},
{
"featured_image": "files/sweet-pea-everlasting-flower-seeds-Comp.jpg",
"secondary_image": "products/SeedPouch_2ba4aa78-444b-4270-b7a5-11043532d36e.jpg",
"price": 299,
"handle": "sweet-pea-everlasting-flower-seeds",
"title": "Sweet Pea Seeds - Everlasting",
"url": "/products/sweet-pea-everlasting-flower-seeds",
"available": false
},
{
"featured_image": "files/bellis-english-daisy-habanera-mixture-flower-seeds-Comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-1-oz-sm_01514b22-6538-4ba2-a722-8d4abcc0e13a.png",
"price": 399,
"handle": "bellis-english-daisy-habanera-mixture-flower-seeds",
"title": "Bellis (English Daisy) Seeds - Habanera Mixture (Pelleted)",
"url": "/products/bellis-english-daisy-habanera-mixture-flower-seeds",
"available": true
},
{
"featured_image": "files/kniphofia-flamenco-flower-seeds-comp.jpg",
"secondary_image": "products/non-gmo-sprouting-seed_1e77c7de-93b0-4b25-9118-2f2e2843a9b6.jpg",
"price": 309,
"handle": "kniphofia-flamenco-flower-seeds",
"title": "Kniphofia Seeds - Flamenco",
"url": "/products/kniphofia-flamenco-flower-seeds",
"available": true
},
{
"featured_image": "files/hollyhock-powderpuffs-double-mix-flower-seeds-Comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-4-oz-sm_2bf0116d-a526-4055-bec4-b227f980822b.png",
"price": 299,
"handle": "hollyhock-powderpuffs-double-mix-flower-seeds",
"title": "Hollyhock Seeds - Powderpuffs Double Mix",
"url": "/products/hollyhock-powderpuffs-double-mix-flower-seeds",
"available": false
},
{
"featured_image": "files/hollyhock-chaters-double-mixture-flower-seeds-Comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-4-oz-sm_0dedcabf-f2a1-4661-acf8-90e1a63a8839.png",
"price": 339,
"handle": "hollyhock-chaters-double-mixture-flower-seeds",
"title": "Hollyhock Seeds - Chaters Double Mixture",
"url": "/products/hollyhock-chaters-double-mixture-flower-seeds",
"available": false
},
{
"featured_image": "files/agastache-arizona-sun-seeds-Comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-1-oz-sm_ec9e83ab-8abb-4477-8cfc-48e8f3999aa0.png",
"price": 409,
"handle": "agastache-arizona-sun-seeds",
"title": "Agastache Seeds - Arizona Sun",
"url": "/products/agastache-arizona-sun-seeds",
"available": true
},
{
"featured_image": "files/coffee-seeds-coffea-arabica-nana-Comp.jpg",
"secondary_image": "files/Coffea-Arabica-Nana-flowers_a6f79e4c-b93c-44fc-97f1-4e42be0b5059.jpg",
"price": 439,
"handle": "coffee-seeds-coffea-arabica-nana",
"title": "Coffee Seeds - Coffea Arabica Nana",
"url": "/products/coffee-seeds-coffea-arabica-nana",
"available": false
},
{
"featured_image": "files/rhubarb-crowns-canadian-red-Comp.jpg",
"secondary_image": "files/1710439005_Rhubarb-2-comp_e90a6d79-3ffe-4dcb-a903-c6ecd61e9084.jpg",
"price": 1586,
"handle": "rhubarb-crowns-canadian-red",
"title": "Rhubarb Crowns - Spring - Canadian Red",
"url": "/products/rhubarb-crowns-canadian-red",
"available": false
},
{
"featured_image": "files/rhubarb-crowns-valentine-Comp.jpg",
"secondary_image": "files/1710439005_Rhubarb-2-comp_6b5ad08b-ec7f-4987-a299-fc4123f2e26c.jpg",
"price": 1586,
"handle": "rhubarb-crowns-valentine",
"title": "Rhubarb Crowns - Spring - Valentine",
"url": "/products/rhubarb-crowns-valentine",
"available": false
},
{
"featured_image": "files/geum-mrs-bradshaw-flower-seeds-Comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-4-oz-sm_ff3847f0-b7de-4fea-a73f-124b60a64310.png",
"price": 299,
"handle": "geum-mrs-bradshaw-flower-seeds",
"title": "Geum Seeds - Mrs. Bradshaw",
"url": "/products/geum-mrs-bradshaw-flower-seeds",
"available": true
},
{
"featured_image": "files/1733938446_strawberry_roots_everbearing_albion_comp_bfd7aff9-1c6a-4ef1-a51b-4aff1a012b2e.jpg",
"secondary_image": "",
"price": 2495,
"handle": "strawberry-roots-everbearing-albion-hybrid",
"title": "Strawberry Roots - Everbearing - Albion Hybrid",
"url": "/products/strawberry-roots-everbearing-albion-hybrid",
"available": false
},
{
"featured_image": "files/1733937241_strawberry_roots_june_bearing_Honeoye_comp_05092090-3329-41bd-a2f2-9e346afd65ca.jpg",
"secondary_image": "",
"price": 1248,
"handle": "strawberry-roots-june-bearing-honeoye-hybrid",
"title": "Strawberry Roots - June Bearing - Honeoye Hybrid",
"url": "/products/strawberry-roots-june-bearing-honeoye-hybrid",
"available": false
},
{
"featured_image": "files/sedum-dragons-blood-flower-seeds-Comp.jpg",
"secondary_image": "",
"price": 1533,
"handle": "sedum-dragons-blood-flower-seeds",
"title": "Sedum Seeds - Dragons Blood",
"url": "/products/sedum-dragons-blood-flower-seeds",
"available": true
},
{
"featured_image": "files/1733937844_strawberry_roots_everbearing_eversweet_comp_d43fc1c0-8985-43ad-ac75-abb8392cd44a.jpg",
"secondary_image": "",
"price": 2495,
"handle": "strawberry-roots-everbearing-eversweet-hybrid",
"title": "Strawberry Roots - Everbearing - Eversweet Hybrid",
"url": "/products/strawberry-roots-everbearing-eversweet-hybrid",
"available": false
},
{
"featured_image": "files/1733939448_strawberry_roots_everbearing_seascape_comp_a80ea2f1-a33c-4f04-9a81-28b6cd59d14c.jpg",
"secondary_image": "",
"price": 2495,
"handle": "strawberry-roots-everbearing-seascape-hybrid",
"title": "Strawberry Roots - Everbearing - Seascape Hybrid",
"url": "/products/strawberry-roots-everbearing-seascape-hybrid",
"available": false
},
{
"featured_image": "files/columbine-seeds-double-mixed-Comp.jpg",
"secondary_image": "files/Flower_1lb_425ecfaf-0455-4091-8f0b-73ab761f5497.jpg",
"price": 299,
"handle": "columbine-seeds-double-mixed",
"title": "Columbine Seeds - Double Mixed",
"url": "/products/columbine-seeds-double-mixed",
"available": false
},
{
"featured_image": "files/national-wildflower-collection-6-wildflower-mixes-for-pollinators-comp.jpg",
"secondary_image": "products/National-Wildflower-Collection-wood-wm-comp.jpg",
"price": 4810,
"handle": "national-wildflower-collection-6-wildflower-mixes-for-pollinators",
"title": "National Wildflower Collection - 6 Wildflower Mixes for Pollinators",
"url": "/products/national-wildflower-collection-6-wildflower-mixes-for-pollinators",
"available": true
},
{
"featured_image": "files/penstemon-palmers-seed-wm_700_1222x1222_e225d63d-d3e7-4026-abf2-39540e72765a.jpg",
"secondary_image": "products/Seed_Packet_1_2_12822b0f-7d99-44fd-969f-3c2d562aee23.jpg",
"price": 299,
"handle": "palmers-penstemon-seeds",
"title": "Penstemon Seeds - Palmers",
"url": "/products/palmers-penstemon-seeds",
"available": true
}
]