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When to Plant Caraway in Franklin County, MA

Caraway is a biennial herb grown for its distinctive crescent-shaped seeds used in rye bread, sauerkraut, and European cuisine. The leaves and roots are also edible.

Franklin County, Massachusetts is in USDA Zone 5b. The average last spring frost is May 9 and the first fall frost is October 11, giving you a growing season of approximately 155 days.

At an elevation of 1,016 feet, Franklin County receives approximately 42.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87ยฐF, providing good warmth for Caraway during the growing season.

Franklin County, MA (Zone 5b) Moderate season
155 days
Last Spring Frost May 9
155 growing days
First Fall Frost October 11

Franklin County Soil Profile

Soil Type

Silt Loam

Soil pH

4.8-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Start indoors: Mar 26 Transplant: Apr 23
Recommended (50%) ✓ Fits season
Start indoors: Apr 4 Transplant: May 2
Safe Start (90%) ✓ Fits season
Start indoors: Apr 16 Transplant: May 14

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Caraway needs ~6,214 GDD — county provides 2,363 GDD May not mature

Caraway Planting Timeline โ€” Franklin County, MA

Caraway Planting Calendar

Activity When Date Range
Start Indoors April 4 Apr 4 โ€“ Apr 18
Transplant Outdoors May 2 May 2 โ€“ May 16
Direct Sow April 25 Apr 25 โ€“ May 16
Fall Sowing August 2 Aug 2 โ€“ Aug 16

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

365โ€“450 days

Soil pH

6 โ€“ 7.5

USDA Zone

Zone 5b

Growing Season

155 days

Growing Tips for Franklin County

Direct sow in spring or fall. Caraway produces seeds in its second year. Harvest seed heads when they turn brown. The young leaves can be used like parsley.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Level Up Your Garden

Frequently Asked Questions

When should I plant Caraway in Franklin County, MA?

Franklin County is in Zone 5b with an average last frost of May 9. Plan your Caraway planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Franklin County, MA?

Franklin County, Massachusetts is in USDA Hardiness Zone 5b. The average last spring frost is May 9 and first fall frost is October 11.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Franklin County gardeners in Zone 5b organize planting dates, track what's growing, and never miss a planting window.

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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, MA. Local conditions may vary. Last updated: April 2026.