Zone 3b planting calendar

What to plant in February: zone 3b

Zone 3b averages its last spring frost around May 25 and its first fall frost around September 15. Everything below is timed from those two dates, so it stays useful whether you're planting for summer or for a fall harvest.

These are zone-average dates. Check an area-level frost estimate from thirty years of nearby weather history and this calendar retimes itself.
Last frost: May 25
First frost: September 15
Winter lows: -35 to -30 °F
Zone 3b Almanac. What growers here actually recorded: sowing weeks, days to first pick, and yields.

Plan & order

  • Inventory and order seedaround Feb 2

    Sort what you already have, toss anything over 3 years old, and order early while varieties are in stock.

  • Map this year's bedsaround Feb 9

    Rotate families off last year's ground. Nightshades, brassicas and cucurbits each move to a new bed.

  • Soil testaround Feb 16

    A $20 test now tells you what to amend before planting instead of guessing all season.

Dormant care

  • Sharpen and oil toolsaround Feb 23

    Clean, sharpen and oil blades while there's time. Dull tools bruise plants and slow you down.

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