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]()
Pepper Seeds - Hot - Cuban Chile
80-90 Days to maturity (from transplant). Capsicum annuum. Cuban Chile Hot Pepper Seeds. Non-GMO, annual, open-pollinated, hot, ornamental pepper with hot heat levels. 30,000-40,000 Scoville Heat Units. Suitable for growing...
Radish Seeds - Red Rat's Tail
50 Days to maturity. Raphanus sativus. Red Rat’s Tail Radish Seeds. Non-GMO, annual, open-pollinated, heirloom radish. This Asian aerial radish is grown for its 3-6 inch long, red and green...
Leaf Radish Seeds - Saisai Purple - Hybrid
30 to 40 Days to maturity. Raphanus sativus. Saisai Purple Leaf Radish Seeds. Annual, Hybrid. This red-stemmed leaf radish will stand out in any dish you make with it! Saisai...
Squash Seeds - Summer - Sunbeam F1
Sunbeam F1 Hybrid Squash Seeds. Cucurbita pepo. F1 Hybrid. Non-GMO. Annual. 47 days to maturity. Sunbeam F1 produces golden yellow scallop fruits with a memorable flavor. Approximately 250 Seeds /...
Sunflower Seeds - Goldeneye
68 Days to maturity. Helianthus annuus. Goldeneye Sunflower F1 Hybrid Seeds: Non-GMO. Ornamental. Annual. Goldeneye is a hybrid 100% pollen-less single flower and headed sunflower. It is an undeniable, classic...
Pepper Seeds - Hot - Jamaican Red
90-100 Days to maturity. Capsicum chinense. Jamaican Red Hot Pepper Seeds. Non-GMO, annual, open-pollinated, heirloom hot pepper seeds with high heat levels: 100,000 to 350,000 Scoville Heat Units. This spicy...
Bean Seeds - Gold Marie (Organic)
75 Days to maturity. Phaseolus vulgaris. Gold Marie Organic Bean Seeds. Non-GMO, annual, organic, heirloom, open-pollinated, drought tolerant, pole, snap, romano bean. Suitable for growing in containers, garden plots, raised...
Melon Seeds - Glamorous Hybrid (Organic)
90 Days to maturity. Cucumis melo. Organic Glamorous Hybrid Melon Seeds. A non-GMO, annual, organic, F1 hybrid, heat-tolerant Galia Melon. Suitable for growing in garden plots, raised beds, and greenhouses....
Sunflower Seeds - Star Chaser
80 Days to maturity. Helianthus annuus. Star Chaser F1 Hybrid Sunflower Seeds: Non-GMO. Organic. Ornamental. Annual. Hybrid Star Chaser F1 is a large pollen-less sunflower that will effortlessly brighten up...
Tomato Seeds - Salad - Variegated
90 Days to maturity (from transplant). Solanum lycopersicum. Variegated Tomato Seeds. Non-GMO, open-pollinated, indeterminate, warm season, annual, salad tomato. Suitable for growing in garden plots, raised beds, greenhouses, and large...
Sunflower Seeds - Velvet Queen (Organic)
90-110 Days to maturity. Helianthus annuus. Organic Velvet Queen Sunflower Seeds: Non-GMO. Open Pollinated. Organic. Ornamental. Annual. Heirloom. Velvet Queen seeds grow one of the summer's most exclusive and rare...
Tomato Seeds - Federle
85 Days to maturity (from transplant). Solanum lycopersicum. Federle Tomato Seeds. Non-GMO, annual, open-pollinated, heirloom, indeterminate, paste tomato. Also known as Federle’s Italian Paste tomato. Plant produces 7-inch-long red paste...
Melon Seeds - Giallo Canary Rugoso
90-110 Days to maturity. Cucumis melo. Giallo Canary Rugoso Melon Seeds. A non-GMO, annual, heirloom, open-pollinated, heat-tolerant melon. Suitable for growing in garden plots, raised beds, and greenhouses. This unique...
Pepper Seeds - Sweet - Rainbow Bell Blend (Organic)
60-69 Days to maturity (from transplant). Capsicum annuum. Organic Rainbow Bell Blend Pepper Seeds. Non-GMO, annual, high-yielding, drought-tolerant, sweet pepper with no heat levels. 0 Scoville Heat Units. Suitable for...
Cucumber Seeds - Morden Early
45-55 Days to Maturity. Cucumis sativus. Morden Early Cucumber Vegetable Seeds. Non-GMO, annual, open-pollinated, heirloom pickling cucumber. An extra-early cucumber well suited to short-season areas. Developed in Manitoba, Canada, in...
Squash Seeds - Winter - Mardi Gras F1 PMT
Mardi Gras F1 PMT Hybrid Squash Seeds. Cucurbita pepo. F1 Hybrid. Non-GMO. Annual. 105 days to maturity. At long last we have created a bush version of our very popular...
Melon Seeds - Cantaloupe - Incredible Hybrid
100 Days to maturity. Cucumis melo. Incredible Hybrid Cantaloupe Melon Seeds. A non-GMO, annual, F1 hybrid, heat-tolerant Cantaloupe Melon. Suitable for growing in garden plots, raised beds, and greenhouses. The...
Sunflower - Black Oil (Organic) - ProGrade Microgreens Seeds
Selected for Professional Growers. 8-12 Days to maturity. Helianthus annuus. Organic Black Oil Sunflower ProGrade Microgreen Seeds. Non-GMO, open-pollinated. ProGrade Microgreens is True Leaf Market's premium microgreen seed program. Each...
Corn Seeds - Ornamental - Wampum
Wampum Ornamental Corn Seeds. Zea mays. Heirloom, Annual. 90 days to maturity. Earlier version of a Carousel type ornamental with ears 4-5 in. long 1.25 in. diameter. Approximately 150 seeds/ounce....
Corn Seeds - Sweet - Eden RMN F1 Hybrid
74 days to maturity. Zea mays. Eden RMN Hybrid Corn Seeds. Non-GMO, annual, F1 Hybrid, augmented supersweet (sh2i) corn. This crop is suitable for growing in fields, garden plots, and...
Squash Seeds - Winter - Green Magic F1
Green Magic F1 Hybrid Squash Seeds. Cucurbita maxima. F1 Hybrid. Non-GMO. Annual. 100 days to maturity. Green Magic F1 are dark green, 5 to 7 lbs. fruits with excellent flash...
Radish Seeds - Pink Summercicle (Organic)
32-40 days to maturity. Raphanus sativus. Organic Pink Summercicle Radish Seeds. Non-GMO, organic, annual, open-pollinated, heirloom radish seed. Suitable for growing in garden plots, raised beds, containers, and fields. Organic...
Pepper Seeds - Sweet - Gold Horn F1 Hybrid
70 Days to maturity (from transplant). Capsicum annuum. Gold Horn F1 Hybrid Pepper Seeds. Non-GMO, annual, F1 hybrid, high-yielding, sweet pepper with no heat. 0 Scoville Heat Units. Suitable for...
Melon Seeds - Cantaloupe - Emerald Gem
70-90 Days to maturity. Cucumis melo var. cantalupensiso. Emerald Gem Cantaloupe Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Cantaloupe Melon. Suitable for growing in garden plots, raised beds, and...
Bean Seeds - Pole - Blue Lake FM1K (Organic)
65 days to maturity. Phaseolus vulgaris. Organic Blue Lake Pole FM1K Bean Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, high-yielding, drought-tolerant, pole, snap bean. This bean is suitable for growing in...
Corn Seeds - Popcorn - Strawberry (Organic)
100 Days to maturity. Zea mays. Organic Popcorn - Strawberry Corn Seeds. Non-GMO, annual, Organic, open-pollinated, heirloom, Pop Corn. Suitable for growing in garden plots or raised beds. Corn tolerates...
Bean Seeds - Pole - Musica
60-65 Days to maturity. Phaseolus vulgaris. Musica Bean Vegetable Seeds. Also known as Spanish musca bean seeds. Non-GMO, annual, open-pollinated, pole snap bean. This "romano" type has large, flattened bean...
Sunflower Seeds - Black Russian
65-70 Days to maturity. Helianthus annuus. Organic Black Russian Sunflower Seeds. Non-GMO. Open Pollinated. Ornamental. Annual. Heirloom. The Black Russian sunflower is striking and grows up to 12 feet tall...
Bean Seeds - Pole - Akahana Mame
80-95 Days to maturity. Phaseolus coccineus. Akahana Mame Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, pole, shell, Asian bean. Suitable for growing in garden plots, raised beds, and greenhouses. This "flower...
Tomato Seeds - Slicing - Boxcar Willie (Organic)
80 Days to maturity (from transplant). Solanum lycopersicum. Organic Boxcar Willie Tomato Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, indeterminate, slicing tomato. Suitable for growing in garden plots, raised beds, and...
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