What to plant in September, zone 4a

In zone 4a, the typical last spring frost is May 12 and the first fall frost is September 28. Here is your September checklist.

Fall planting

Plant these for fall and overwintering this month:

Swiss ChardAugust 31 to September 7

Harvest

Expect to harvest these this month:

PumpkinJuly 21 to September 23

Want your exact dates?

These are zone 4a averages. Enter your ZIP for a calendar built on your nearest weather station.

Open the planting calendar

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. Zone dates are medians; local conditions vary.