Warm Winter / Frost-Free Areas — Zones 9b–12
April is full spring momentum in the warm-winter zones, with many gardens shifting decisively into warm-season planting while remaining cool-season crops finish strong. This is a great month to direct sow and transplant heat lovers outdoors, and to keep succession planting going so harvests don't gap as days get longer and brighter. In the hottest areas, start planning for rising temperatures by watching irrigation closely, adding mulch, and timing your final rounds of tender cool-season crops before consistent heat arrives.
Indoors (fresh harvests):
-
Microgreens: peas, broccoli, sunflowers, arugula
-
Sprouts: alfalfa, broccoli, radish, mung
-
Herbs & greens under lights: chives, parsley, mint
Transplants to move outdoors (weather permitting — harden first): pepper, tomato, eggplant, melons, basil
Crops that can be directly sown outdoors in April: cucumber, squash, beans, corn, melons, and okra. Transition note: lettuce, spinach, and other cool-season greens can still be sown in early April in some areas, but will bolt as the month progresses.
Cover crops: buckwheat, cow peas, sorghum
Tip: A Southern California zone 10 can be 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
![Legend: H for Heirloom, O for Organic, A for AAS Winner, F for staff favorites]()
Watermelon Seeds - Picnic - Garrisonian
80-90 Days to maturity. Citrullus lanatus. Garrisonian Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, picnic watermelon. Garrisonian Watermelon Seeds from True Leaf Market produce large, oblong watermelon fruits...
Watermelon Seeds - Picnic - Striped Klondike R7
80-90 Days to maturity. Citrullus lanatus. Striped Klondike R7 Watermelon Seeds. Non-GMO, annual, open-pollinated, heirloom, heat tolerant, seeded, picnic watermelon. Suitable for growing in garden plots. Klondike R7 watermelon is...
Squash Seeds - Winter - Guatemalan Blue
90 to 110 days to maturity. Cucurbita maxima. Guatemalan Blue Winter Squash Seeds. Non-GMO, annual, heirloom, open-pollinated. Suitable for growing in fields, garden plots, raised beds, and containers. Striking blue-skinned...
Melon Seeds - Tendral Verde Tardif
110 Days to maturity. Cucumis melo var. inodorus. Valencia Late Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant specialty Melon. Suitable for growing in garden plots, raised beds, and greenhouses....
Pepper Seeds - Hot - Thai Ornamental
80-90 Days to maturity (from transplant). Capsicum annuum. Thai Ornamental Hot Pepper Seeds. Non-GMO, annual, open-pollinated, deer-resistant, heat-tolerant, hot pepper with hot heat levels. 50,000 to 100,000 Scoville Heat Units....
Squash Seeds - Winter - Amish Pie (Organic)
100 days to maturity. Cucurbita maxima. Organic Amish Pie Winter Squash Seeds. Non-GMO, annual, heirloom, organic, open-pollinated. This is suitable for growing in fields, containers, garden plots, raised beds, and...
Radish Seeds - Green Stem
8-12 Days to microgreen harvest. Raphanus Raphanistrum Sativus. Green Stem Radish Seeds. Annual, Non-GMO, Open Pollinated, Heirloom. These Green Stem Radishes are specifically intended to be used for sprouting and...
Bean Seeds - Bush - Doyou Adzuki
80-100 Days to maturity. Vigna angularis. Doyou Adzuki Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, AAS winner, high-yielding, bush, shell, Asian, specialty, sprouting bean. Suitable for growing in containers, garden plots,...
Radish Seeds - Shogoin Globe
70 Days to maturity. Raphanus sativus. Shogoin Globe Radish Seeds. Cool Season Annual, Heirloom. Shogoin Globe radishes are round daikon radishes that grow quite large–up to 7 inches in diameter!...
Sunflower Seeds - Pradera Gold (Organic)
75-90 Days to Maturity. Helianthus annuus. Pradera Gold Organic Flower Seeds. Non-GMO, open-pollinated, organic, flower seeds. Annual in zones 2, 3, 4, 5, 6, 7, 8, 9, 10, 11. Deer...
Brassica Classic Trio Cover Crop Seed Mix (Organic)
40-60 Days to Maturity. Brassica napus, Brassica rapa, and Raphanus sativus. Organic 3 Brassica Classic Trio Cover Crop Seeds. Non-GMO, organic, annual, winter-killing. This cover crop mix is ideal for...
Melon Seeds - Vine Peach
60-90 Days to maturity. Cucumis melo. Vine Peach Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant specialty Melon. Suitable for growing in containers, garden plots, raised beds, and greenhouses. Also...
Sunflower Seeds - Starburst
75 Days to maturity. Helianthus annuus. Starburst Sunflower Seeds: Non-GMO. Open Pollinated. Ornamental. Annual. Starburst F1 Hybrid is full-faced brown-headed sunflower perfect for gardens filled with sunshine! This pollen-less hybrid...
Melon Seeds - Honeydew - Golden Honeymoon
92 Days to maturity. Cucumis melo. Golden Honeymoon Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Honeydew Melon. Suitable for growing in garden plots, raised beds, and greenhouses. Resistant to...
Leaf Radish Seeds - Saisai - Hybrid
30 to 40 Days to maturity. Raphanus sativus. Saisai Leaf Radish Hybrid Seeds. Annual. Leaf radishes are perfect for the gardener who wants tender, peppery radish greens that can be...
Squash Seeds - Winter - Cushaw Orange Striped
Cushaw Orange Striped Winter Squash Seeds. 110 days to maturity. Cucurbita mixta. Annual. Heirloom. The cushaw varieties are commonly referred to as both squash and pumpkins. Approximately 175 seeds/ounce. Squash...
Radish Seeds - Relish Cross - Hybrid
60 Days to maturity. Raphanus sativus. Relish Cross Radish Hybrid Seeds. Cool Season Annual. Relish Cross radishes are the best-selling variety in Japan due to their consistent quality, large size,...
Squash Seeds - Summer - Lunar Eclipse F1
Lunar Eclipse F1 Hybrid Squash Seeds. Cucurbita pepo. F1 Hybrid. Non-GMO. Annual. 40 days to maturity. Approximately 250 Seeds / Ounce. Download Free Vegetable Growing Guide PDF Select a Different...
Radish Seeds - Confetti Mix
Confetti Mix Radish Seeds. 25 days to maturity. Can be grown in containers. Raphanus sativus. Open Pollinated, Annual. Fast maturing colorful bled of red white and bi colored radishes with...
Squash Seeds - Winter - Chieftain Hybrid
80 days to maturity. Cucurbita moschata. Chieftain Hybrid Winter Squash Seeds. Non-GMO, annual, F1 hybrid. This is suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Early...
Squash Seeds - Winter - Bugle
80 Days to maturity. Cucurbita maxima. Bugle Winter Squash Seeds. Non-GMO, open-pollinated, heirloom. Suitable for growing in fields, garden plots, and raised beds. This French heirloom produces a beautifully shaped...
Watermelon Seeds - Mini - Triple Gold Hybrid
78 Days to maturity. Citrullus lanatus. Triple Gold Hybrid Watermelon Seeds. Non-GMO, annual, F1 hybrid, seedless, mini watermelon. Triple Gold Hybrid is a delicious yellow watermelon without seeds. Its flesh...
Melon Seeds - Whimsy F1
100 Days to maturity. Cucumis melo var. inodorus. Whimsy Hybrid Melon Seeds. A non-GMO, annual, F1 hybrid, heat-tolerant specialty Melon. Suitable for growing in garden plots, raised beds, and greenhouses....
Radish Seeds - Philadelphia White Box
Philadelphia White Box Radish Seeds. 30 days to maturity. Raphanus sativus. Heirloom, Annual. Perfect for containers and garden beds Philadelphia White Window Box is an excellent choice for home gardeners...
Watermelon Seeds - Mini - Golden Midget (Organic)
60-70 Days to maturity. Citrullus lanatus. Golden Midget Organic Watermelon Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, heat tolerant, seeded, mini watermelon. Suitable for growing in garden plots and large containers...
Squash Seeds - Winter - Burgess Buttercup (Organic)
95 days to maturity. Cucurbita maxima. Organic Burgess Buttercup Winter Squash Seeds. Non-GMO, annual, heirloom, open-pollinated. This is suitable for growing in fields, garden plots, and raised beds. Classic buttercup...
Squash Seeds - Winter - Indian Brave F1
Indian Brave F1 Hybrid Squash Seeds. Cucurbita moschata. F1 Hybrid. Non-GMO. Annual. 85 days to maturity. Many of our customers have been requesting a larger vining hybrid butternut that is...
Squash Seeds - Winter - Big Chief Hybrid
110 days to maturity. Cucurbita moschata. Big Chief Hybrid Butternut Winter Squash Seeds. Non-GMO, annual, F1 hybrid. This is suitable for growing in fields, garden plots, raised beds, and containers....
[
{
"featured_image": "products/Radish-Korean-Passion-Altari-Hybrid-wm-comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-premium_3501c061-da5f-4233-9012-1e5ebcc452b4.png",
"price": 399,
"handle": "radish-seeds-korean-passion-altari-hybrid",
"title": "Radish Seeds - Korean - Passion Altari Hybrid (Treated)",
"url": "/products/radish-seeds-korean-passion-altari-hybrid",
"available": false
},
{
"featured_image": "files/squash-seeds-winter-big-chief-f1-Comp.jpg",
"secondary_image": "products/MVS-generic-packet-com_b06ece1f-9e97-4900-98ea-c29256a13e68.jpg",
"price": 399,
"handle": "squash-seeds-winter-big-chief-f1",
"title": "Squash Seeds - Winter - Big Chief Hybrid",
"url": "/products/squash-seeds-winter-big-chief-f1",
"available": false
},
{
"featured_image": "files/watermelon-seeds-garrisonian-Comp.jpg",
"secondary_image": "products/Seed_Packet_1_1_1_1_1_67233e3e-f149-4ea5-8fb5-344d77a8eb6c.jpg",
"price": 329,
"handle": "watermelon-seeds-garrisonian",
"title": "Watermelon Seeds - Picnic - Garrisonian",
"url": "/products/watermelon-seeds-garrisonian",
"available": true
},
{
"featured_image": "files/watermelon-seeds-klondike-r7-1-Comp.jpg",
"secondary_image": "products/Seed_Packet_1_276a6a23-826b-480c-89f8-a017dba80120.jpg",
"price": 299,
"handle": "watermelon-seeds-klondike-r7-1",
"title": "Watermelon Seeds - Picnic - Striped Klondike R7",
"url": "/products/watermelon-seeds-klondike-r7-1",
"available": true
},
{
"featured_image": "files/squash-seeds-winter-guatemalan-blue-Comp.jpg",
"secondary_image": "products/MVS-generic-packet-com_bc1250a7-c189-4067-a6ce-507eef28d403.jpg",
"price": 359,
"handle": "squash-seeds-winter-guatemalan-blue",
"title": "Squash Seeds - Winter - Guatemalan Blue",
"url": "/products/squash-seeds-winter-guatemalan-blue",
"available": true
},
{
"featured_image": "files/melon-seeds-tendral-verde-tardif-Comp.jpg",
"secondary_image": "products/Seed_Packet_8f120bb9-a32e-48fa-9538-4812c6c6ce81.jpg",
"price": 299,
"handle": "melon-seeds-tendral-verde-tardif",
"title": "Melon Seeds - Tendral Verde Tardif",
"url": "/products/melon-seeds-tendral-verde-tardif",
"available": true
},
{
"featured_image": "files/1722449079_pepper_hot_thai_ornamental_comp_543d4b3c-1171-41a2-858c-234dd9528fff.jpg",
"secondary_image": "files/Kitazawa-Seed-Company-Bag-Packaging_482b84a5-526d-44f3-921f-43381e4e6626.jpg",
"price": 299,
"handle": "pepper-seeds-hot-thai-ornamental",
"title": "Pepper Seeds - Hot - Thai Ornamental",
"url": "/products/pepper-seeds-hot-thai-ornamental",
"available": true
},
{
"featured_image": "files/Squash-Winter-Amish-Pie-Organic-Comp.jpg",
"secondary_image": "",
"price": 389,
"handle": "squash-seeds-winter-amish-pie-organic",
"title": "Squash Seeds - Winter - Amish Pie (Organic)",
"url": "/products/squash-seeds-winter-amish-pie-organic",
"available": true
},
{
"featured_image": "files/radish-seeds-green-stem-Comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-premium_f67a7abb-da1e-4027-8123-c21d8af18c25.png",
"price": 199,
"handle": "radish-seeds-green-stem",
"title": "Radish Seeds - Green Stem",
"url": "/products/radish-seeds-green-stem",
"available": true
},
{
"featured_image": "files/adzuki-bean-doyou-Comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-premium_ad07fdbf-cb99-4af2-9bea-23d509ed8988.png",
"price": 399,
"handle": "adzuki-bean-doyou",
"title": "Bean Seeds - Bush - Doyou Adzuki",
"url": "/products/adzuki-bean-doyou",
"available": true
},
{
"featured_image": "files/radish-seeds-shogoin-globe-comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-premium_e2b0bca2-69b1-43a2-8e3d-56038302fe35.png",
"price": 399,
"handle": "radish-seeds-shogoin-globe",
"title": "Radish Seeds - Shogoin Globe",
"url": "/products/radish-seeds-shogoin-globe",
"available": true
},
{
"featured_image": "files/1738091637_sunflower_pradera_gold_organic_comp_2564d6cc-37fe-4087-87a3-9cf784fc7be6.jpg",
"secondary_image": "",
"price": 539,
"handle": "sunflower-seeds-pradera-gold-organic",
"title": "Sunflower Seeds - Pradera Gold (Organic)",
"url": "/products/sunflower-seeds-pradera-gold-organic",
"available": true
},
{
"featured_image": "files/brassica-classic-trio-cover-crop-seed-mix-organic-Comp.jpg",
"secondary_image": "files/Blank2000x2000_98eb46ae-b583-4194-9c77-72c72167bf25.jpg",
"price": 597,
"handle": "brassica-classic-trio-cover-crop-seed-mix-organic",
"title": "Brassica Classic Trio Cover Crop Seed Mix (Organic)",
"url": "/products/brassica-classic-trio-cover-crop-seed-mix-organic",
"available": true
},
{
"featured_image": "files/melon-seeds-vine-peach-Comp.jpg",
"secondary_image": "products/MVS-generic-packet-com_fd3db166-c238-44bc-9d27-fc589001841e.jpg",
"price": 329,
"handle": "melon-seeds-vine-peach",
"title": "Melon Seeds - Vine Peach",
"url": "/products/melon-seeds-vine-peach",
"available": true
},
{
"featured_image": "files/sunflower-seeds-starburst-f1-Comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-1-lb-com_d446fd4c-b8d7-47be-b95d-539c77891b08.jpg",
"price": 429,
"handle": "sunflower-seeds-starburst-f1",
"title": "Sunflower Seeds - Starburst",
"url": "/products/sunflower-seeds-starburst-f1",
"available": true
},
{
"featured_image": "files/corn-se-sugar-buns-hybrid-treated-comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-sm_a5fabf89-2ad0-4525-89bf-0005cd10466e.png",
"price": 4906,
"handle": "corn-se-sugar-buns-hybrid-treated",
"title": "Corn Seeds - Sweet - Sugar Buns Hybrid (treated)",
"url": "/products/corn-se-sugar-buns-hybrid-treated",
"available": true
},
{
"featured_image": "products/melon-golden-honeymoon-conventional-o-com-wm.jpg",
"secondary_image": "products/MVS-generic-packet-com_8fdc400b-fa5f-40e4-bdcc-4e6aa45b66ed.jpg",
"price": 329,
"handle": "melon-seeds-golden-honeymoon",
"title": "Melon Seeds - Honeydew - Golden Honeymoon",
"url": "/products/melon-seeds-golden-honeymoon",
"available": true
},
{
"featured_image": "files/leaf-radish-seeds-saisai-hybrid-Comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-premium_d65d247a-05c3-4d8a-a0d7-6a80af31342d.png",
"price": 399,
"handle": "leaf-radish-seeds-saisai-hybrid",
"title": "Leaf Radish Seeds - Saisai - Hybrid",
"url": "/products/leaf-radish-seeds-saisai-hybrid",
"available": true
},
{
"featured_image": "files/Squash_Winter_Cushaw_Orange_Striped_Comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-1-lb-com_6702b12b-fe4f-4cbb-a1e5-ee7d682ded8c.jpg",
"price": 339,
"handle": "squash-seeds-winter-cushaw-orange-striped",
"title": "Squash Seeds - Winter - Cushaw Orange Striped",
"url": "/products/squash-seeds-winter-cushaw-orange-striped",
"available": true
},
{
"featured_image": "files/radish-seeds-relish-cross-hybrid-Comp.jpg",
"secondary_image": "products/non-gmo-seed-bag-premium_c7bf0952-e19d-48d5-97ab-98221759f86d.png",
"price": 399,
"handle": "radish-seeds-relish-cross-hybrid",
"title": "Radish Seeds - Relish Cross - Hybrid",
"url": "/products/radish-seeds-relish-cross-hybrid",
"available": true
},
{
"featured_image": "files/squash-seeds-summer-lunar-eclipse-f1-Comp.jpg",
"secondary_image": "products/MVS-generic-packet-com_3af17059-5c54-4bdb-92e2-e22a0c1b0f61.jpg",
"price": 389,
"handle": "squash-seeds-summer-lunar-eclipse-f1",
"title": "Squash Seeds - Summer - Lunar Eclipse F1",
"url": "/products/squash-seeds-summer-lunar-eclipse-f1",
"available": true
},
{
"featured_image": "files/pearled-emmer-wheat-farro-organic-bulk-grains-Comp.jpg",
"secondary_image": "products/1676045969_CopyofSustainable-WM-Black_600x600px_67.jpg",
"price": 394,
"handle": "pearled-emmer-wheat-farro-organic-bulk-grains",
"title": "Pearled Emmer Wheat Farro (Organic) - Bulk Grains",
"url": "/products/pearled-emmer-wheat-farro-organic-bulk-grains",
"available": true
},
{
"featured_image": "products/radish-confetti-mix-conventional-l-com-wm.jpg",
"secondary_image": "products/MVS-generic-packet-com_16d76793-6365-4866-b8d6-b4a46d8df293.jpg",
"price": 299,
"handle": "radish-seeds-confetti-mix",
"title": "Radish Seeds - Confetti Mix",
"url": "/products/radish-seeds-confetti-mix",
"available": true
},
{
"featured_image": "files/squash-seeds-winter-chieftain-f1-pmt-Comp.jpg",
"secondary_image": "products/MVS-generic-packet-com_cd4e8152-52fd-41ed-8de1-b79f865d396f.jpg",
"price": 399,
"handle": "squash-seeds-winter-chieftain-f1-pmt",
"title": "Squash Seeds - Winter - Chieftain Hybrid",
"url": "/products/squash-seeds-winter-chieftain-f1-pmt",
"available": true
},
{
"featured_image": "files/Bugle-Winter-Squash-Comp.jpg",
"secondary_image": "products/MVS-generic-packet-com_9c23619a-7e44-4387-a548-011cb6162917.jpg",
"price": 359,
"handle": "squash-seeds-winter-bugle",
"title": "Squash Seeds - Winter - Bugle",
"url": "/products/squash-seeds-winter-bugle",
"available": true
},
{
"featured_image": "files/squash-seeds-winter-golden-delicious-organic-Comp.jpg",
"secondary_image": "products/SSC-organic-generic-packet-com_ec9bc22b-2ba9-4a4e-be36-2af404bc26af.jpg",
"price": 389,
"handle": "squash-seeds-winter-golden-delicious-organic",
"title": "Squash Seeds - Winter - Golden Delicious - Organic",
"url": "/products/squash-seeds-winter-golden-delicious-organic",
"available": true
},
{
"featured_image": "files/watermelon-seeds-triple-gold-f1-Comp.jpg",
"secondary_image": "products/MVS-generic-packet-com_a0ecdfec-6d30-4151-ac25-63885e49b5c8.jpg",
"price": 729,
"handle": "watermelon-seeds-triple-gold-f1",
"title": "Watermelon Seeds - Mini - Triple Gold Hybrid",
"url": "/products/watermelon-seeds-triple-gold-f1",
"available": true
},
{
"featured_image": "products/melon-whimsy-f1-hybrid-l-com-wm.jpg",
"secondary_image": "products/non-gmo-seed-bag-1-lb-com_c50d7821-2f8a-49e7-81b4-014f3752d94c.jpg",
"price": 559,
"handle": "melon-seeds-whimsy-f1",
"title": "Melon Seeds - Whimsy F1",
"url": "/products/melon-seeds-whimsy-f1",
"available": true
},
{
"featured_image": "files/radish-seeds-philadelphia-white-box-Comp.jpg",
"secondary_image": "products/MVS-generic-packet-com_b3e4446d-87e5-45c2-acb2-fc1ad2a9479c.jpg",
"price": 299,
"handle": "radish-seeds-philadelphia-white-box",
"title": "Radish Seeds - Philadelphia White Box",
"url": "/products/radish-seeds-philadelphia-white-box",
"available": true
},
{
"featured_image": "files/watemelon-golden-midget-organic-l-com-wm_1222x1222_61cdad4a-329c-49d1-892e-28a6db85f775.jpg",
"secondary_image": "products/non-gmo-seed-bag-1-lb-com_ee13c12d-af8e-4009-99d9-bfe47c511f76.jpg",
"price": 419,
"handle": "watermelon-seeds-golden-midget-organic",
"title": "Watermelon Seeds - Mini - Golden Midget (Organic)",
"url": "/products/watermelon-seeds-golden-midget-organic",
"available": true
},
{
"featured_image": "files/organic-burgess-buttercup-squash-seed-Comp.jpg",
"secondary_image": "products/SSC-organic-generic-packet-com_2771c310-be8e-4d2e-9dc4-9ff60944fefd.jpg",
"price": 359,
"handle": "organic-burgess-buttercup-squash-seed",
"title": "Squash Seeds - Winter - Burgess Buttercup (Organic)",
"url": "/products/organic-burgess-buttercup-squash-seed",
"available": true
},
{
"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
}
]
