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When to plant Comfrey in Russell County, KS

Russell County sits in cold Zone 6b. Plant Comfrey April 30–May 14 for the single annual harvest; the October 16 first frost closes the window.

When to Plant Comfrey in Russell County, KS

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

Russell County, Kansas is in USDA Zone 6b. The average last spring frost is April 23 and the first fall frost is October 16, giving you a growing season of approximately 176 days.

At an elevation of 984 feet, Russell County receives approximately 33.8 inches of rainfall annually with predominantly loam soil. Summer highs average 87°F, providing good warmth for Comfrey during the growing season.

Russell County, KS (Zone 6b) Moderate season
176 days
Last Spring Frost April 23
176 growing days
First Fall Frost October 16

Russell County Soil Profile

Soil Type

Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Comfrey Planting Timeline — Russell County, KS

Comfrey Planting Calendar

Activity When Date Range
Transplant Outdoors April 30 Apr 30 – May 14
Harvest July 2 Jul 2 – Sep 10

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

Month-by-Month Timeline

MonthActivities
January
February
March
April Transplant Outdoors
May Transplant Outdoors
June
July Harvest
August Harvest
September Harvest
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 6b

📆 Growing Season

176 days in Russell County

Growing Tips for Russell 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 Russell County, KS?

Russell County is in Zone 6b with an average last frost of April 23. Plan your Comfrey planting based on this frost date — see the calendar above for exact timing.

What planting zone is Russell County, KS?

Russell County, Kansas is in USDA Hardiness Zone 6b. The average last spring frost is April 23 and first fall frost is October 16.

When should I plant Comfrey in Russell County, KS?

In Russell County, KS, plant Comfrey after the last frost (around April 23) and before the first frost (around October 16). Best results when soil holds above 50°F.

What growing zone is Russell County, KS for Comfrey?

Russell County sits in USDA Zone 6b. Comfrey grows reliably in zones 3a through 9b, so it's a good fit here.

Can Comfrey grow in Russell County's climate?

Yes — Comfrey grows well in Russell County's temperate climate. Russell County averages a 176-day frost-free season, with last frost around April 23 and first frost around October 16.

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Your Russell County Garden Planner — Free

A 22-page printable planner built for Russell County (Zone 6b). 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 Russell County, KS. Local conditions may vary. Last updated: June 2026.

Sources & credits

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