Growing collards in zone 8b
In USDA zone 8b, the typical last spring frost is March 17 and the first fall frost is November 14. Here is when to plant collards against those dates.
Start seeds indoorsJanuary 20
Transplant outdoorsMarch 3
Direct sow outdoorsFebruary 24
Expected harvestApril 25 to May 15About 60 to 80 days from sowing.
Plant in fallAugust 15
These are zone 8b averages
Computed from 3,378 ZIP codes in zone 8b. 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.