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When to plant Comfrey in Benton County, AR

In Benton County, Comfrey is a spring-only crop. Plant April 16–April 30 once soil hits 50°F.

When to Plant Comfrey in Benton 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.

Benton County, Arkansas is in USDA Zone 7a. The average last spring frost is April 9 and the first fall frost is October 25, giving you a growing season of approximately 199 days.

At an elevation of 905 feet, Benton County receives approximately 50.8 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°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.

Benton County, AR (Zone 7a) Moderate season
199 days
Last Spring Frost April 9
199 growing days
First Fall Frost October 25

Benton County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Comfrey Planting Timeline — Benton County, AR

Comfrey Planting Calendar

Activity When Date Range
Transplant Outdoors April 16 Apr 16 – Apr 30
Harvest June 18 Jun 18 – Aug 27

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

Month-by-Month Timeline

MonthActivities
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

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 7a

📆 Growing Season

199 days in Benton County

Growing Tips for Benton 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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Comfrey in Benton County, AR?

Benton County is in Zone 7a with an average last frost of April 9. Plan your Comfrey planting based on this frost date — see the calendar above for exact timing.

What planting zone is Benton County, AR?

Benton County, Arkansas is in USDA Hardiness Zone 7a. The average last spring frost is April 9 and first fall frost is October 25.

When should I plant Comfrey in Benton County, AR?

In Benton County, AR, plant Comfrey after the last frost (around April 9) and before the first frost (around October 25). Best results when soil holds above 50°F.

What growing zone is Benton County, AR for Comfrey?

Benton County sits in USDA Zone 7a. Comfrey grows reliably in zones 3a through 9b, so it's a good fit here.

Can Comfrey grow in Benton County's climate?

Yes — Comfrey grows well in Benton County's temperate climate. Benton County averages a 199-day frost-free season, with last frost around April 9 and first frost around October 25.

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Your Benton County Garden Planner — Free

A 22-page printable planner built for Benton County (Zone 7a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Benton County, AR. Local conditions may vary. Last updated: July 2026.

Sources & credits

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