Zone 2a planting calendar
What to plant in September: zone 2a
Zone 2a averages its last spring frost around June 5 and its first fall frost around August 20. Everything below is timed from those two dates, so it stays useful whether you're planting for summer or for a fall harvest.
Last frost: June 5
First frost: August 20
Winter lows: -50 to -45 °F
A quiet month in zone 2a
September is a rest-and-plan month here. Use it to order seed, test your soil, repair beds, and map next season's rotation, then jump ahead to October.
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