When to plant broccoli in zone 3

Broccoli in USDA zone 3

Average zone 3 frost dates: last spring frost ≈ May 20, first fall frost ≈ Sep 15 (118 frost-free days). Local dates can vary by 2-3 weeks.

Start indoors 6-8 weeks before transplanting 2 weeks before the last frost; fall crops do very well.

When to plant broccoli in zone 3?

Start seeds indoors: Apr 1 – Apr 15; Transplant outdoors: May 6 – May 27; Expected first harvest: from Jul 15; Fall planting: Jun 23 – Jul 7.

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