Blog

When to Plant Comfrey in Barbour County, AL

Comfrey is a vigorous perennial herb valued as a dynamic accumulator of nutrients. Its leaves make excellent mulch, compost activator, and liquid fertilizer.

Barbour County, Alabama is in USDA Zone 8a. The average last spring frost is March 10 and the first fall frost is November 15, giving you a growing season of approximately 250 days.

At an elevation of 454 feet, Barbour County receives approximately 60.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 94ยฐF, providing good warmth for Comfrey during the growing season. Clay soil retains moisture well for Comfrey, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Comfrey root diseases.

Barbour County, AL (Zone 8a) Long season
250 days
Last Spring Frost March 10
250 growing days
First Fall Frost November 15

Barbour County Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (110 days to spare)
Transplant: Mar 12 🍅 Harvest: May 14 – Jul 23
Recommended (50%) ✓ Fits season (110 days to spare)
Transplant: Mar 17 🍅 Harvest: May 19 – Jul 28
Safe Start (90%) ✓ Fits season (108 days to spare)
Transplant: Apr 3 🍅 Harvest: Jun 5 – Aug 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
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Comfrey needs ~1,538 GDD — county provides 5,125 GDD Excellent fit

Comfrey Planting Timeline โ€” Barbour County, AL

Comfrey Planting Calendar

Activity When Date Range
Transplant Outdoors March 17 Mar 17 โ€“ Mar 31
Harvest May 19 May 19 โ€“ Jul 28

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Transplant Outdoors
April โ€”
May Harvest
June Harvest
July Harvest
August โ€”
September โ€”
October โ€”
November โ€”
December โ€”

Growing Conditions

Sun

Partial Shade (3-6 hours)

Water

Moderate โ€” regular watering

Days to Maturity

60โ€“90 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 8a

Growing Season

250 days

Growing Tips for Barbour County

Plant root cuttings 2 inches deep. Choose Bocking 14 variety to prevent self-seeding. Cut leaves 3-4 times per season for mulch or compost. Avoid planting near pathways as it spreads.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant Comfrey in Barbour County, AL?

Barbour County is in Zone 8a with an average last frost of March 10. Plan your Comfrey planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Barbour County, AL?

Barbour County, Alabama is in USDA Hardiness Zone 8a. The average last spring frost is March 10 and first fall frost is November 15.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Barbour County gardeners in Zone 8a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

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