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First Frost: Typically late Sept to early Oct
Plant fast-growing, cold-tolerant crops starting in late July through mid-August. Focus on varieties that mature in 30–50 days. Consider using row covers or cold frames to extend your season.

Start sowing:

  • Spinach, arugula, mâche, kale: Late July to early August

  • Radish, turnip, cold-hardy lettuce: Early to mid-August

Quick tip: In Zone 3, stick with ultra-fast greens and root crops—your window is shorter but still productive!

Zones 3–5:
Last sowing typically happens by late August to early September

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