Growing collards in zone 9a
In USDA zone 9a, the typical last spring frost is March 2 and the first fall frost is November 26. Here is when to plant collards against those dates.
Start seeds indoorsJanuary 5
Transplant outdoorsFebruary 16
Direct sow outdoorsFebruary 9
Expected harvestApril 10 to April 30About 60 to 80 days from sowing.
Plant in fallAugust 27
These are zone 9a averages
Computed from 2,196 ZIP codes in zone 9a. Your town's frost dates vary; enter your ZIP for dates built on your nearest weather station.
Get my exact datesUSDA 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 collards from Clemson Cooperative Extension, Home & Garden Information Center. Zone dates are medians; local conditions vary.