When to Plant Comfrey in Marengo 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.
Marengo County, Alabama is in USDA Zone 8a. The average last spring frost is March 13 and the first fall frost is November 13, giving you a growing season of approximately 245 days.
At an elevation of 453 feet, Marengo County receives approximately 59.8 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90°F, 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.
Marengo County Soil Profile
Soil Type
Clay Loam
Soil pH
5.2-6.7
Drainage
Well Drained
Plant Planting Risk Windows
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
Comfrey Planting Timeline — Marengo County, AL
Comfrey Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | March 20 | Mar 20 – Apr 3 |
| Harvest | May 22 | May 22 – Jul 31 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Transplant Outdoors |
| April | Transplant Outdoors |
| May | Harvest |
| June | Harvest |
| July | Harvest |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Partial Shade (3-6 hours)
Water
Moderate — regular watering
Days to Maturity
60–90 days
Soil pH
6 – 7
USDA Zone
Zone 8a
Growing Season
245 days
Growing Tips for Marengo 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
Comfrey in Other Locations
Frequently Asked Questions
When should I plant Comfrey in Marengo County, AL?
Marengo County is in Zone 8a with an average last frost of March 13. Plan your Comfrey planting based on this frost date — see the calendar above for exact timing.
What planting zone is Marengo County, AL?
Marengo County, Alabama is in USDA Hardiness Zone 8a. The average last spring frost is March 13 and first fall frost is November 13.
Plan Your Garden with Confidence
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