Turnip illustration

⚪ Growing Turnip in Zone 4b

Zone 4b has cold winters and a moderate growing season. Timing is key for Turnip in this zone. Last frost: May 1. First frost: Oct 5.

Planting Calendar

Outdoor
Harvest
Apr 10Oct 5

Season: May 1 – Oct 5 (157 days) · Succession: plant every 3 weeks (up to 5x)

Zone4b
Last FrostMay 1
First FrostOct 5
Season Length157 days
Days to Harvest45
SunFull Sun
Frost ToleranceModerate
Spacing9/sqft (4" apart)

When to Plant Turnip in Zone 4b

Sow Seeds Outdoors: Apr 10

Direct sow Turnip seeds outdoors around Apr 10. Soil temperature should be at least 40°F. Space at 9/sqft (4" apart).

Harvest: May 25

First harvest approximately May 25 (~45 days from planting). Continue harvesting until first frost (Oct 5).

Fall Planting: Aug 10

For a fall harvest, plant Turnip around Aug 10 (8 weeks before first frost).

Companion Planting

✅ Peas✅ Vetch
❌ Knapweed❌ Mustard Greens

Plan Your Turnip Garden

Track Turnip from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.

Start Free Turnip Growing Guide