Zone 9 Planting Calendar
Zone 9 β California, Gulf Coast, Florida
Last updated: Apr 25, 2026Zone 9 Climate Facts
Last Spring Frost
Feb 28
First Fall Frost
Nov 25
Growing Season
270 days
Plants Available
50 varieties
All Plants for Zone 9
π Data Sources
Frost dates: NOAA Climate Normals 1991β2020, National Centers for Environmental Information.Hardiness zones: USDA Plant Hardiness Zone Map, Agricultural Research Service.
Growing requirements: Cooperative Extension Services β NC State, Penn State, University of Florida IFAS.
Companion planting: Cornell University Cooperative Extension.
Data compiled from public agricultural sources. Always verify with your local extension office for micro-climate adjustments.