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When to Plant Comfrey in Atoka County, OK

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

Atoka County, Oklahoma is in USDA Zone 8a. The average last spring frost is April 4 and the first fall frost is November 1, giving you a growing season of approximately 211 days.

At an elevation of 741 feet, Atoka County receives approximately 30.4 inches of rainfall annually with predominantly loam soil. Summer highs average 94°F, providing good warmth for Comfrey during the growing season.

Atoka County, OK (Zone 8a) Long season
211 days
Last Spring Frost April 4
211 growing days
First Fall Frost November 1

Atoka County Soil Profile

Soil Type

Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Comfrey Planting Timeline — Atoka County, OK

Comfrey Planting Calendar

Activity When Date Range
Transplant Outdoors April 11 Apr 11 – Apr 25
Harvest June 13 Jun 13 – Aug 22

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 8a

📆 Growing Season

211 days in Atoka County

Growing Tips for Atoka 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 Atoka County, OK?

Atoka County is in Zone 8a with an average last frost of April 4. Plan your Comfrey planting based on this frost date — see the calendar above for exact timing.

What planting zone is Atoka County, OK?

Atoka County, Oklahoma is in USDA Hardiness Zone 8a. The average last spring frost is April 4 and first fall frost is November 1.

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Your Atoka County Garden Planner — Free

A 22-page printable planner built for Atoka County (Zone 8a). 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 Atoka County, OK. Local conditions may vary. Last updated: July 2026.

Sources & credits

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