Growing zucchini in zone 12
Direct-sow after frost and stand back. Harvest at 6–8 inches — they double in size overnight in July. A second sowing in midsummer keeps production going after vine borers or mildew take the first planting.
Zone 12 covers hawaiʻi lowlands, Puerto Rico — tropical — timing follows wet and dry seasons rather than frost.
Make it local
These windows use zone 12's typical frost dates. For windows computed from your frost dates, run the ZIP code frost lookup and open the planting calendar — it remembers your city. The seed starting scheduler turns the whole seed rack into one printable, date-sorted list.
Frequently asked questions
When should I plant zucchini in zone 12?
Zone 12 is frost-free, so timing flips from frost-avoidance to heat management: plant zucchini nearly year-round, avoiding peak summer heat. Late winter and late summer plantings avoid fruiting during the hottest stretch.
Does zucchini grow well in zone 12?
Yes — heat-loving crops like zucchini thrive in zone 12, often across a far longer window than mainland gardens get. Watch water needs and intense midsummer sun.