Growing sunflowers in zone 11
Sunflowers direct-sow easily and dislike transplanting. Sow every 2–3 weeks for continuous blooms, and site tall varieties on the north side of the garden so they don’t shade everything else.
Zone 11 covers miami and the Keys, Hawaiʻi coasts — frost-free — plant warm-season crops most of the year; cool crops in the mildest months.
Make it local
These windows use zone 11'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 sunflowers in zone 11?
Zone 11 is frost-free, so timing flips from frost-avoidance to heat management: plant sunflowers nearly year-round, avoiding peak summer heat. Late winter and late summer plantings avoid fruiting during the hottest stretch.
Does sunflowers grow well in zone 11?
Yes — heat-loving crops like sunflowers thrive in zone 11, often across a far longer window than mainland gardens get. Watch water needs and intense midsummer sun.