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When to plant Comfrey in Hancock County, ME

Plant Comfrey in Hancock County during the brief May 13–May 27 window. With 158 frost-free days, fall plantings can't mature before October 11.

When to Plant Comfrey in Hancock County, ME

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

Hancock County, Maine is in USDA Zone 6a. The average last spring frost is May 6 and the first fall frost is October 11, giving you a growing season of approximately 158 days.

At an elevation of 654 feet, Hancock County receives approximately 45.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Comfrey during the growing season.

Hancock County, ME (Zone 6a) Moderate season
158 days
Last Spring Frost May 6
158 growing days
First Fall Frost October 11

Hancock County Soil Profile

Soil Type

Silt Loam

Soil pH

5-6.6

Drainage

Well Drained

Monthly Watering Guide for Comfrey

Comfrey needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Comfrey Needs Rainfall You Supplement Action
Jan 3.4" 0" ❄️ Dormant
Feb 2.9" 0" ❄️ Dormant
Mar 3.3" 0" ❄️ Dormant
Apr 4.1" 0" ❄️ Dormant
May 4.3" 4.2" 0.1" 💧 Light watering
Jun 4.3" 4" 0.3" 💧 Light watering
Jul 4.3" 4.6" 0" ✅ Rainfall sufficient
Aug 4.3" 4.2" 0.1" 💧 Light watering
Sep 4.3" 4.4" 0" ✅ Rainfall sufficient
Oct 4.3" 3.5" 0.8" 💧 Light watering
Nov 3.3" 0" ❄️ Dormant
Dec 3.2" 0" ❄️ Dormant

Water needs are for active growing months only (May–Oct in Hancock County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Comfrey Planting Timeline — Hancock County, ME

Comfrey Planting Calendar

Activity When Date Range
Transplant Outdoors May 13 May 13 – May 27
Harvest July 15 Jul 15 – Sep 23

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

Month-by-Month Timeline

MonthActivities
January
February
March
April
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 6a

📆 Growing Season

158 days in Hancock County

Growing Tips for Hancock 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 Hancock County, ME?

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

What planting zone is Hancock County, ME?

Hancock County, Maine is in USDA Hardiness Zone 6a. The average last spring frost is May 6 and first fall frost is October 11.

When should I plant Comfrey in Hancock County, ME?

In Hancock County, ME, plant Comfrey after the last frost (around May 6) and before the first frost (around October 11). Best results when soil holds above 50°F.

What growing zone is Hancock County, ME for Comfrey?

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

Can Comfrey grow in Hancock County's climate?

Yes — Comfrey grows well in Hancock County's temperate climate. Hancock County averages a 158-day frost-free season, with last frost around May 6 and first frost around October 11.

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Your Hancock County Garden Planner — Free

A 22-page printable planner built for Hancock County (Zone 6a). 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 Hancock County, ME. Local conditions may vary. Last updated: July 2026.

Sources & credits

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