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🧄 Growing שום in Zone 3b
Zone 3b has harsh winters and a short growing season. Start שום early indoors to maximize your harvest window. Last frost: May 22. First frost: Sep 12.
Season Too Short
שום needs 240 days to harvest, but Zone 3b has only a 113-day growing season. Consider short-season varieties or season extension techniques (cold frames, row covers).
When to Plant שום in Zone 3b
Sow Seeds Outdoors: Apr 10
Direct sow שום seeds outdoors around Apr 10. Soil temperature should be at least 35°F. Space at 9/sqft (4" apart).
Harvest: Dec 6
First harvest approximately Dec 6 (~240 days from planting). Continue harvesting until first frost (Sep 12). שום can overwinter in mild climates for continued harvest.
Fall Planting: Aug 1
For a fall harvest, plant שום around Aug 1 (6 weeks before first frost).
Companion Planting
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