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When to Plant Comfrey in Dallas 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.

Dallas County, Alabama is in USDA Zone 8a. The average last spring frost is March 14 and the first fall frost is November 13, giving you a growing season of approximately 244 days.

At an elevation of 182 feet, Dallas County receives approximately 53.3 inches of rainfall annually with predominantly clay loam soil. Summer highs average 93ยฐF, 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.

Dallas County, AL (Zone 8a) Long season
244 days
Last Spring Frost March 14
244 growing days
First Fall Frost November 13

Dallas County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (104 days to spare)
Transplant: Mar 14 🍅 Harvest: May 16 – Jul 25
Recommended (50%) ✓ Fits season (104 days to spare)
Transplant: Mar 21 🍅 Harvest: May 23 – Aug 1
Safe Start (90%) ✓ Fits season (101 days to spare)
Transplant: Apr 10 🍅 Harvest: Jun 12 – Aug 21

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
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 179 gal / 100 sq ft
Comfrey needs ~1,481 GDD — county provides 4,819 GDD Excellent fit

Comfrey Planting Timeline โ€” Dallas County, AL

Comfrey Planting Calendar

Activity When Date Range
Transplant Outdoors March 21 Mar 21 โ€“ Apr 4
Harvest May 23 May 23 โ€“ Aug 1

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Transplant Outdoors
April Transplant Outdoors
May Harvest
June Harvest
July Harvest
August Harvest
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

244 days

Growing Tips for Dallas 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 Dallas County, AL?

Dallas County is in Zone 8a with an average last frost of March 14. Plan your Comfrey planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Dallas County, AL?

Dallas County, Alabama is in USDA Hardiness Zone 8a. The average last spring frost is March 14 and first fall frost is November 13.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Dallas County gardeners in Zone 8a 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 Dallas County, AL. Local conditions may vary. Last updated: April 2026.