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.
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![Legend: H for Heirloom, O for Organic, A for AAS Winner, F for staff favorites]()
Bean Seeds - Bush - Jackson Wonder Lima (Organic)
65-85 Days to maturity. Phaseolus lunatus. Jackson Wonder Lima Bean Seeds (Organic). Non-GMO, annual, organic, open-pollinated, heirloom, high-yielding, heat-tolerant, drought-tolerant, bush, shell, lima bean. Suitable for growing in containers, garden...
Melon Seeds - Amarillo Oro
100 Days to maturity. Cucumis melo. Amarillo Oro Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Melon. Suitable for growing in garden plots, raised beds, and greenhouses. These heirloom melons...
Squash Seeds - Winter - Moore Gold
100 Days to maturity. Cucurbita maxima. Moore Gold Winter Squash Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Resistant to common...
Squash Seeds - Winter - New Zealand Blue
110 Days to maturity. Cucurbita maxima. New Zealand Blue Winter Squash Seeds. Non-GMO, annual, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. New Zealand...
Watermelon Seeds - Mini - Sweet Beauty Hybrid
75-80 days. Citrullus lanatus. Sweet Beauty Hybrid Watermelon seeds are tender annuals with active vines that spread 10 feet long and can grow 3 feet tall! This hybrid variety falls...
Melon Seeds - Cantaloupe - Imperial PMR 45 (Organic)
80-90 Days to maturity. Cucumis melo. Imperial PMR 45 Organic Cantaloupe Melon Seeds. A non-GMO, annual, organic, open-pollinated, heirloom, heat-tolerant Cantaloupe Melon. Suitable for growing in garden plots, raised beds,...
Triticale Seeds - Bunker
X titosecale Triticale is a cross between wheat and cereal rye. Bunker is winter active, awnletted (reduced awn expression) variety used primarily as a green chop -whole plant forage, for...
Radish Seeds - Oshin - Hybrid
Radish Seeds - Oshin - Hybrid. Non-GMO. Raphanus sativus. 60 days. Cool season annual. Extra slow bolting radish with very late pithiness. It has strong tolerance to cold and medium...
Melon Seeds - Eindor
80-90 Days to maturity. Cucumis melo var. reticulatus. Eindor Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant specialty Melon. Suitable for growing in containers, garden plots, raised beds, and greenhouses....
Radish Seeds - Sakurajima Mammoth
80 to 90 Days to maturity. Raphanus sativus. Sakurajima Mammoth Heirloom Seeds. Cool Season Annual. Known as the “Largest Radish in the World” in Japan, Sakurajima Mammoth radishes can grow...
Melon Seeds - Pickling - Green Striped
70 Days to maturity. Cucumis melo var conomom. Green Striped Pickling Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant, Asian Melon. Suitable for growing in garden plots, raised beds, and...
Melon Seeds - Crenshaw - Marvelous Hybrid
100 Days to maturity. Cucumis melo. Crenshaw Melon Seeds. A non-GMO, annual, F1 hybrid, heat-tolerant Marvelous Hybrid Crenshaw Melon. Suitable for growing in garden plots, raised beds, and greenhouses. Melon...
Bean - Pole - Seychelles
55-65 Days to maturity. Phaseolus vulgaris. Seychelles Bean Seeds. Non-GMO, annual, open-pollinated, high-yielding, heat-tolerant, 2017 AAS-winner, stringless, pole, snap bean. Suitable for growing in containers, garden plots, raised beds, and...
Watermelon Seeds - Picnic - Kleckley's Sweet (Organic)
85 Days to maturity. Citrullus lanatus. Kleckley’s Sweet Organic Watermelon Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, heat tolerant, seeded, picnic watermelon. Suitable for growing in garden plots. Kleckley’s Sweet has...
Melon Seeds - Cantaloupe - Green Nutmeg
61-89 Days to maturity. Cucumis melo. Green Nutmeg Cantaloupe Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, AAS winner, heat tolerant, drought tolerant, Cantaloupe Melon. Suitable for growing in containers, garden...
Melon Seeds - Cantaloupe - Top Mark
80-90 Days to maturity. Cucumis melo var. cantalupensis. Top Mark Melon Vegetable Seeds. Non-GMO, annual, open-pollinated, heirloom, cantaloupe melon. Resistant to Downy Mildew, Powdery Mildew, Cucumber Beetles, is scab resistant,...
Melon Seeds - Crenshaw - White Crenshaw
100 Days to maturity. Cucumis melo. White Crenshaw Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant White Crenshaw Melon. Suitable for growing in garden plots, raised beds, and greenhouses. The...
Radish Seeds - Iwai Daikon
Radish Seeds - Iwai Daikon. Heirloom, Non-GMO. Raphanus sativus. 50 days. Cool season annual. Unique for its small size, this traditional Japanese radish has long been a favorite for New...
Pepper Seeds - Sweet - Quadrato D'Asti Rosso
80-85 Days to Maturity. Capsicum annuum. Quadrato d'Asti Rosso Pepper Vegetable Seeds. Non-GMO, annual, open-pollinated, heirloom, sweet pepper. A large, green-to-red, sweet, blocky bell pepper. It produces thick-walled, four-lobe peppers...
Squash Seeds - Winter - Festival F1
Festival F1 Hybrid Squash Seeds. Cucurbita pepo. F1 Hybrid. Non-GMO. Annual. 100 days to maturity. Festival is a decorative and delicious winter squash. Its skin is marbled and would look...
Sunflower Seeds - Canyon Sunset
60 Days to maturity. Helianthus annuus. Canyon Sunset Sunflower Seeds: Non-GMO. hybrid. Ornamental. Annual. A lovely pollen-less F1 hybrid single-head sunflower, Canyon Sunset can grow up to 7 feet tall....
Squash Seeds - Winter - Blue Banana
80-120 Days to maturity. Cucurbita maxima. Winter Blue Banana Squash Seeds. Non-GMO, annual, open-pollinated. A rare heirloom winter squash, Blue Banana produces large, elongated fruits averaging 18–24 inches long and...
Melon Seeds - Honeydew - Fabulous Hybrid
100 Days to maturity. Cucumis melo. Fabulous Hybrid Honeydew Melon Seeds. A non-GMO, annual, F1 hybrid, heat-tolerant Honeydew Melon. Suitable for growing in garden plots, raised beds, and greenhouses. The...
Melon Seeds - Cantaloupe - Delightful Hybrid
100 Days to maturity. Cucumis melo. Delightful Hybrid Cantaloupe Melon Seeds. A non-GMO, annual, F1 hybrid, heat-tolerant Cantaloupe Melon. Suitable for growing in garden plots, raised beds, and greenhouses. Bite...
Radish Seeds - Comet
Comet Radish Seeds. 23 - 26 days to maturity. 1936 AAS Winner. Can be grown in containers. Raphanus sativus. Heirloom, Annual. Deep-globe to round best at .75-1 in. bright-red skin...
Radish Seeds - Nerima
Radish Seeds - Nerima. Heirloom, Non-GMO. Raphanus sativus. 70 days. Cool season annual. This popular, large, long white daikon is a traditional variety that comes from Nerima-ku of Tokyo, Japan....
Bean Seeds - Bush - French Garden Yellow Fillet
45-55 Days to maturity. Phaseolus vulgaris. French Garden Yellow Fillet Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, bush, snap, wax bean. Suitable for growing in containers, garden plots, raised beds, and...
Melon Seeds - Honeydew - Extravagant Hybrid
100 Days to maturity. Cucumis melo. Extravagant Hybrid Melon Seeds. A non-GMO, annual, F1 hybrid, heat-tolerant honeydew cantaloupe Melon. Suitable for growing in garden plots, raised beds, and greenhouses. Resistant...
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