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When to Plant Sorrel in Franklin County, VT

Sorrel is a perennial herb with tangy, lemon-flavored arrow-shaped leaves. It is one of the first greens to emerge in spring and is used in soups and salads.

Franklin County, Vermont is in USDA Zone 5a. The average last spring frost is May 7 and the first fall frost is October 9, giving you a growing season of approximately 155 days.

At an elevation of 512 feet, Franklin County receives approximately 39.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 80°F, so choose short-season varieties of Sorrel to ensure they mature before fall.

Franklin County, VT (Zone 5a) Moderate season
155 days
Last Spring Frost May 7
155 growing days
First Fall Frost October 9

Franklin County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Sorrel Planting Timeline — Franklin County, VT

Sorrel Planting Calendar

Activity When Date Range
Start Indoors April 2 Apr 2 – Apr 16
Transplant Outdoors April 30 Apr 30 – May 14
Direct Sow April 23 Apr 23 – May 14
Harvest June 11 Jun 11 – Aug 13
Fall Sowing July 31 Jul 31 – Aug 14

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April Start Indoors Transplant Outdoors Direct Sow
May Transplant Outdoors Direct Sow
June Harvest
July Fall Sowing Harvest
August Fall Sowing Harvest
September
October
November
December

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 5.5–7 · Your soil: N/A

🗺️ USDA Zone

Zone 5a

📆 Growing Season

155 days in Franklin County

Growing Tips for Franklin County

Direct sow in early spring or fall. Remove flower stalks promptly to encourage leaf production. Divide clumps every 3-4 years. Young leaves have the best flavor.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Sorrel in Franklin County, VT?

Franklin County is in Zone 5a with an average last frost of May 7. Plan your Sorrel planting based on this frost date — see the calendar above for exact timing.

What planting zone is Franklin County, VT?

Franklin County, Vermont is in USDA Hardiness Zone 5a. The average last spring frost is May 7 and first fall frost is October 9.

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Your Franklin County Garden Planner — Free

A 22-page printable planner built for Franklin County (Zone 5a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Franklin County, VT. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.