When should I plant Parsnip in Zone 4b?

Direct sow Parsnip outdoors around Apr 3. Harvest around Jul 12.

What is the last frost date for Zone 4b?

The average last spring frost date for Zone 4b is May 1. The first fall frost averages Oct 5, giving a 157-day growing season.

Can I grow Parsnip in Zone 4b?

Yes. Parsnip needs 100 days to harvest. Zone 4b has a 157-day growing season, which is sufficient.

Growing Parsnip in Zone 4b

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

Planting Calendar

Outdoor

Harvest

Apr 3Oct 5

Season: May 1 – Oct 5 (157 days)

Zone4b

Last FrostMay 1

First FrostOct 5

Season Length157 days

Days to Harvest100

SunFull Sun

Frost ToleranceHeavy

Spacing4/sqft (6" apart)

When to Plant Parsnip in Zone 4b

Sow Seeds Outdoors: Apr 3

Direct sow Parsnip seeds outdoors around Apr 3. Soil temperature should be at least 45°F. Space at 4/sqft (6" apart).

Harvest: Jul 12

First harvest approximately Jul 12 (~100 days from planting). Continue harvesting until first frost (Oct 5). Parsnip can overwinter in mild climates for continued harvest.

Companion Planting

✅ Rosemary✅ Potatoes✅ Onions✅ Garlic✅ Peas

❌ Celery❌ Carrots

Parsnip 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 13b

Plan Your Parsnip Garden

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

Start Free Parsnip Growing Guide