Zone 6a planting calendar

What to plant in September — zone 6a

Zone 6a averages its last spring frost around April 30 and its first fall frost around October 10. 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: April 30

First frost: October 10

Winter lows: -10 to -5 °F

Direct sow for fall

Radisharound Sep 7
Succession sowing 2 of 3 — sow every 14 days for a steady cut.
Spinacharound Sep 11
Counts back 40 days from your first frost. Frost-hardy — light freezes sweeten it.
Radisharound Sep 21
Counts back 30 days from your first frost. Frost-hardy — light freezes sweeten it.

Sow cover crop

Cover crop (cereal rye + crimson clover)around Sep 10
Sown a month before frost it germinates, holds your soil all winter, and feeds it in spring.

Plant to overwinter

Garlicaround Sep 26
Cloves go in about two weeks before first frost — they root now, sleep, then bulb next summer.

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