What to plant in September, zone 4b

In zone 4b, the typical last spring frost is May 8 and the first fall frost is October 1. Here is your September checklist.

Fall planting

Plant these for fall and overwintering this month:

KaleJuly 30 to September 3
Swiss ChardSeptember 3 to September 10

Harvest

Expect to harvest these this month:

PumpkinJuly 17 to September 19

Want your exact dates?

These are zone 4b 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.