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🥔 Growing Potato in Zone 4b
Zone 4b has cold winters and a moderate growing season. Timing is key for Potato in this zone. Last frost: May 1. First frost: Oct 5.
Planting Calendar
Apr 17Oct 5
Season: May 1 – Oct 5 (157 days)
Zone4b
Last FrostMay 1
First FrostOct 5
Season Length157 days
Days to Harvest90
SunFull Sun
Frost ToleranceModerate
Spacing1/sqft (12" apart)
When to Plant Potato in Zone 4b
Sow Seeds Outdoors: Apr 17
Direct sow Potato seeds outdoors around Apr 17. Soil temperature should be at least 45°F. Space at 1/sqft (12" apart).
Harvest: Jul 16
First harvest approximately Jul 16 (~90 days from planting). Continue harvesting until first frost (Oct 5).
Companion Planting
❌ Tomatoes❌ Pumpkins❌ Cucumbers❌ Squash
Potato in Other Zones
1a 1b 2a 2b 3a 3b 4a 4b 5a 5b 6a 6b 7a 7b 8a 8b 9a 9b 10a 10b 11a 11b 12a 12b 13a 13bPlan Your Potato Garden
Track Potato from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.
Start Free Potato Growing Guide