When to Plant Comfrey in Howard County, AR
Comfrey is a vigorous perennial herb valued as a dynamic accumulator of nutrients. Its leaves make excellent mulch, compost activator, and liquid fertilizer.
Howard County, Arkansas is in USDA Zone 7b. The average last spring frost is March 31 and the first fall frost is November 3, giving you a growing season of approximately 217 days.
At an elevation of 537 feet, Howard County receives approximately 50.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Comfrey during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Comfrey root diseases.
Howard County Soil Profile
Soil Type
Silt Loam
Soil pH
5.5-7.1
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 — Howard County, AR
Comfrey Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | April 7 | Apr 7 – Apr 21 |
| Harvest | June 9 | Jun 9 – Aug 18 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Transplant Outdoors |
| May | — |
| June | Harvest |
| July | Harvest |
| August | Harvest |
| 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 7b
Growing Season
217 days
Growing Tips for Howard 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 Howard County, AR?
Howard County is in Zone 7b with an average last frost of March 31. Plan your Comfrey planting based on this frost date — see the calendar above for exact timing.
What planting zone is Howard County, AR?
Howard County, Arkansas is in USDA Hardiness Zone 7b. The average last spring frost is March 31 and first fall frost is November 3.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Howard County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.
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