Sorrel illustration

Growing Sorrel in Zone 3b

Zone 3b has harsh winters and a short growing season. Start Sorrel early indoors to maximize your harvest window. Last frost: May 15. First frost: Sep 22.

Planting Calendar

Indoor
Outdoor
Harvest
Apr 3Sep 22

Season: May 15 – Sep 22 (130 days)

Zone3b
Last FrostMay 15
First FrostSep 22
Season Length130 days
Days to Harvest40
SunPart Sun / Part Shade
Frost ToleranceHeavy
Spacing4/sqft (6" apart)

When to Plant Sorrel in Zone 3b

Start Seeds Indoors: Apr 3

Start Sorrel seeds indoors around Apr 3 (6 weeks before last frost). Optimal germination temperature: 65°F. Germinates in 7–14 days.

Transplant Outdoors: May 1

Transplant Sorrel seedlings outdoors after May 1. Wait until soil temperature reaches 45°F. Space plants at 4/sqft (6" apart). Harden off plants for a week before moving outside.

Harvest: Jun 15

First harvest approximately Jun 15 (~45 days from transplant). Continue harvesting until first frost (Sep 22). Sorrel can overwinter in mild climates for continued harvest.

Plan Your Sorrel Garden

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

Start Free Sorrel Growing Guide