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]()
Melon Seeds - Japanese - New Melon
110-120 Days to maturity. Cucumis melo. Japanese New Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Asian Melon. Suitable for growing in garden plots, raised beds, and greenhouses. Developed in...
Squash Seeds - Summer - Moonbeam F1
Moonbeam F1 Hybrid Squash Seeds. Cucurbita pepo. F1 Hybrid. Non-GMO. Annual. 45 days to maturity. This heavy yielding variety produces white pie shaped fruits with scalloped edges. ~ 250 Seeds...
Radish Seeds - Wakayama White
60 to 70 Days to maturity. Raphanus sativus. Wakayama White Radish Heirloom Seeds. Cool Season Annual. Wakayama White radishes come from the Wakayama Prefecture in Japan, as the name suggests....
Radish Seeds - Butter Globe
Butter Globe Radish Seeds. 24 days to maturity. Raphanus sativus. Heirloom, Annual. A 1918 The Great Northern Seed Company says this variety is not withstanding its immense size does not...
Basil Seeds - Treviso AAS
90 days. Ocimum basilicum. Basil Treviso AAS. Non-GMO, annual, Italian Genovese-type basil, All-America Selections National Winner. This crop is suitable for garden plots, raised beds, and containers. Treviso is a...
Sunflower Seeds - Classic Gold (Organic)
55-70 Days to maturity. Helianthus annuus. Classic Gold F1 Hybrid Organic Sunflower Seeds: Non-GMO. Ornamental. Annual. The classic sunflower that everyone knows, Sunflower Classic Gold is perfect as a cut...
Watermelon Seeds - Mini - Baby Doll Hybrid (Organic)
70-75 Days to maturity. Citrullus lanatus. Baby Doll F1 Hybrid Organic Watermelon Seeds. Non-GMO, annual, organic, hybrid, heat tolerant, seeded, mini watermelon. Suitable for growing in garden plots and large...
Bean Seeds - Bush - Bell Fava
90-200 Days to maturity. Vicia faba. Bell Fava Bean Seeds. Non-GMO, annual, open-pollinated, heirloom, high-yielding, heat-tolerant, frost-tolerant, bush, shell, fava bean. Suitable for growing in containers, garden plots, raised beds,...
Squash Seeds - Summer - Ronde De Nice (Organic)
50-60 Days to maturity. Cucurbita pepo. Organic Ronde De Nice Squash Seeds. Non-GMO, annual, organic, open-pollinated, heirloom. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Has...
Squash Seeds - Summer - Peter Pan F1
Peter Pan F1 Hybrid Squash Seeds. Cucurbita pepo. F1 Hybrid. Non-GMO. Annual. 50 days to maturity. Can be grown in containers. A miniature patty pan type that is meatier. Approx....
Radish Seeds - Giant Luo Buo
Radish Seeds - Giant Luo Buo. Heirloom, Non-GMO. Raphanus sativus. 80-100 days. Cool season annual. This large oval white radish grows 8-10" long and 5-6" in diameter and is very...
Radish Seeds - Mino Early
Radish Seeds - Mino Early. Heirloom, Non-GMO. Raphanus sativus. 40-50 days. Cool season annual. Mino Early is a leading open pollinated radish (daikon) for summer to fall harvest in Japan....
Squash Seeds - Summer - Total Eclipse Hybrid
49 days to maturity. Cucurbita pepo. Total Eclipse Hybrid Summer Squash Seeds. Non-GMO, annual, F1 hybrid. This is suitable for growing in fields, containers, garden plots, raised beds, and greenhouses....
Squash Seeds - Summer - Jasper F1
Jasper F1 Hybrid Squash Seeds. Cucurbita pepo. F1 Hybrid. Non-GMO. Annual. 45 days to maturity. Early maturing. Jasper F1 is grown in a vigorous bush plant and sets a heavy...
Hulled Millet (Organic) - Bulk Grains
Hulled millet has had the husk removed, and as such won't sprout well. However hulled millet is ideal for grinding into millet flour, making into cereals or porridge, making millet...
Watermelon Seeds - Tom Watson
Tom Watson Watermelon Seeds. 90 Days. Non-GMO, heirloom, open pollinated seeds. Citrullus lanatus. AKA: Ole Tom Watson. A very old heirloom variety originating from the state of Georgia, dating back...
Radish Seeds - Korean - Sushiro - Hybrid
55 to 60 days to maturity in spring and 35 to 40 days to maturity in fall. Raphanus sativus. Hybrid Sushiro Korean Radish Seeds. Cool season hybrid annual. Not a...
Squash Seeds - Summer - Black Jade Hybrid
50-60 Days to maturity. Cucurbita pepo. Black Jade Hybrid Summer Squash Seeds. Non-GMO, annual, F1 hybrid. Suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Resistant to...
Squash Seeds - Winter - Pilgrim F1
Pilgrim F1 Hybrid Squash Seeds. Cucurbita moschata. F1 Hybrid. Non-GMO. Annual. 80 days to maturity. This hybrid butternut squash performs well under a wide variety of growing conditions and has...
Radish Seeds - Miyashige Green Neck
Radish Seeds - Miyashige Green Neck. Heirloom, Non-GMO. Raphanus sativus. 60 days. Cool season annual. One of the most popular varieties used in pickling. The mildly flavored, crisp, white roots...
Squash Seeds - Winter - Hubbard White
90 days to maturity. Cucurbita maxima. Hubbard White Winter Squash Seeds.Non-GMO, annual, heirloom, open-pollinated. Suitable for growing in fields, garden plots, and raised beds. Classic white-skinned Hubbard with thick, bumpy...
Squash Seeds - Winter - American Tondo
100 days to maturity. Cucurbita pepo. American Tondo Winter Squash Seeds. Non-GMO, annual, heirloom, open-pollinated. This is suitable for growing in fields, containers, garden plots, raised beds, and greenhouses. Italian...
Melon Seeds - Branco Do Ribatejo
100 Days to maturity. Cucumis melo. Branco Do Ribatejo Melon Seeds. A non-GMO, annual, open-pollinated, heirloom, heat-tolerant Melon. Suitable for growing in garden plots, raised beds, and greenhouses. The Branco...
Radish Seeds - April Cross - Hybrid
Radish Seeds - April Cross - Hybrid. Non-GMO. Raphanus sativus. 60 days. Cool season annual. This giant white radish or daikon is a market leader for its extra-slow bolting habit,...
Bean Seeds - Bush - Mardi Gras Mix (Organic)
85 Days to maturity. Phaseolus vulgaris. Organic Mardi Gras Mix Bush Bean Seeds. Non-GMO, annual, organic, open-pollinated, heirloom, bush, snap bean. Suitable for growing in containers, garden plots, raised beds,...
Oats Seeds - Tesuque - Organic
Certified Organic Tesuque Oats - Whole, Husk On. Avena nuda. 100 to 120 days to full maturity. Non-GMO, Heirloom, Open Pollinated. Annual. Originally from Tesuque Pueblo, New Mexico. About 90...
Watermelon Seeds - Picnic - Sweet Princess (Organic)
Organic Sweet Princess Watermelon Seeds. 85 - 96 days to maturity. Citrullus lanatus. Heirloom, Non-GMO, Annual. ~ 400 Seeds/ounce. Download Free Vegetable Growing Guide PDF Watermelon Seeds - Sweet Princess...
Radish Seeds - White Icicle - Organic
Raphanus sativus (28 days) Was also know as "Icicle" or "Pearl Forcing" radish. Long radishes were once all the rage. Why have a small ball type radish when you could...
Watermelon Seeds - Mini - Triple Treat Hybrid
85 days to maturity. Citrullus lanatus. Triple Treat F1 Hybrid Watermelon Seeds. Non-GMO, Annual, F1 Hybrid, Heat Tolerant, Seedless, Mini Watermelon. No picnic is complete without Triple Treat! This seedless...
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