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Growing sunflower in zone 10a

In USDA zone 10a, the typical last spring frost is frost-free and the first fall frost is frost-free. Here is when to plant sunflower against those dates.

Your area is effectively frost-free, so frost-anchored timing does not apply. Plant by soil temperature and season instead; see the plant guide.

See the full sunflower guide

These are zone 10a averages

Computed from 1,125 ZIP codes in zone 10a. Your town's frost dates vary; enter your ZIP for dates built on your nearest weather station.

Get my exact dates

USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service / Oregon State University PRISM Group. NOAA National Centers for Environmental Information, U.S. Climate Normals 1991-2020. Planting windows for sunflower from University of Minnesota Extension. Zone dates are medians; local conditions vary.