USDA Zone 10 · Tropical — no real winter
Zone 10 April Planting Guide
April in USDA Zone 10 brings intensifying heat and humidity, signaling the transition into the wet season across much of South Florida, Hawaii, and Southern California. This is prime time to establish heat-loving tropicals and fast-growing vegetables before summer rains kick in.
🌱 Plant now
Sweet Potato
Plant slips in loose, well-draining soil — they thrive in Zone 10 heat and produce heavily by late summer.
Malabar Spinach
This heat-tolerant vine loves April warmth; train it on a trellis and harvest leaves continuously all summer.
Okra
Direct-sow seeds in full sun after soaking overnight — okra explodes in Zone 10 spring heat with minimal care.
Turmeric
Plant rhizomes 2 inches deep now so they establish before summer rains arrive and fuel rapid leafy growth.
Plumeria
Root cuttings in April for strong establishment; allow cut ends to callous 3–5 days before planting in sandy mix.
🚫 Avoid this month
Lettuce
Bolts almost immediately in April heat; wait until October–November for reliable cool-season growing windows.
Broccoli
Requires cool temperatures to head properly — planting now results in stunted, bitter, or non-forming heads.
Peas
Zone 10 April temperatures exceed pea tolerance, causing rapid flowering, poor pod set, and plant decline.
🐛 Pest alert
Whitefly populations surge in Zone 10 during April as temperatures climb. Check the undersides of leaves on tomatoes, hibiscus, and sweet potatoes regularly. Apply insecticidal soap or neem oil in early morning to avoid leaf burn, and introduce beneficial insects like lacewings if infestations are heavy.
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