Growing collards in zone 5a
In USDA zone 5a, the typical last spring frost is May 3 and the first fall frost is October 5. Here is when to plant collards against those dates.
Start seeds indoorsMarch 8
Transplant outdoorsApril 19
Direct sow outdoorsApril 12
Expected harvestJune 11 to July 1About 60 to 80 days from sowing.
Plant in fallJuly 6
These are zone 5a averages
Computed from 2,383 ZIP codes in zone 5a. 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.