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When to plant Comfrey in Sevier County, AR

Plant Comfrey in Sevier County, between April 1 and April 15 — the only viable window. Zone 8a's short season (226 frost-free days) rules out a fall crop.

When to Plant Comfrey in Sevier County, AR

Sevier County, Arkansas Zone 8a June

June in the garden — Sevier County, Arkansas

Welcome to June in Zone 8a. These are the moves that will have the biggest impact on your growing season.

Avg. last frost March 25
Avg. first frost November 6
Soil temp (4") 80°F
Watering Low
Pest pressure High
Daylight 14.3 hrs
  1. Bring in the comfrey

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

July will be here before you know it — start on
  • First harvests: comfrey

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

Sevier County, Arkansas is in USDA Zone 8a. The average last spring frost is March 25 and the first fall frost is November 6, giving you a growing season of approximately 226 days.

At an elevation of 845 feet, Sevier County receives approximately 49.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Comfrey during the growing season.

Sevier County, AR (Zone 8a) Long season
226 days
Last Spring Frost March 25
226 growing days
First Fall Frost November 6

Sevier County Soil Profile

Soil Type

Silt Loam

Soil pH

5.4-6.5

Drainage

Well Drained

Comfrey Planting Risk Windows

Early Start (70% safe) ✓ Fits season (89 days to spare)
Transplant: Mar 23 🍅 Harvest: May 25 – Aug 3
Recommended (50%) ✓ Fits season (86 days to spare)
Transplant: Apr 1 🍅 Harvest: Jun 3 – Aug 12
Safe Start (90%) ✓ Fits season (84 days to spare)
Transplant: Apr 22 🍅 Harvest: Jun 24 – Sep 2

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.

Soil Compatibility in Sevier County

How your county's soil matches Comfrey's growing requirements.

Soil pH

Your soil pH (5.4–6.5) is more acidic than Comfrey prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

The silt loam soil in Sevier County is excellent for Comfrey — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Comfrey.

Organic Matter

Organic matter is moderate (2.6%). Annual compost additions will help Comfrey.

How to Plant Comfrey

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Succession Planting Comfrey

4
successive plantings in your 226-day season

Sow every 6.9 weeks. Last sowing by Aug 08 to harvest before frost.

Comfrey Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 3.9" 0" ❄️ Dormant
Feb 4.2" 0" ❄️ Dormant
Mar 4.3" 4.3" 0" ✅ Rainfall sufficient
Apr 4.3" 4.2" 0.1" 💧 Light watering
May 4.3" 4.1" 0.2" 💧 Light watering
Jun 4.3" 5" 0" ✅ Rainfall sufficient
Jul 4.3" 4.6" 0" ✅ Rainfall sufficient
Aug 4.3" 5.1" 0" ✅ Rainfall sufficient
Sep 4.3" 3.5" 0.8" 💧 Light watering
Oct 4.3" 2.7" 1.6" 💧 Light watering
Nov 4.3" 4.1" 0.2" 💧 Light watering
Dec 3.8" 0" ❄️ Dormant

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

Comfrey Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Comfrey needs ~1,256 GDD — county provides 3,785 GDD Excellent fit

Comfrey Planting Timeline — Sevier County, AR

Comfrey Planting Calendar

Activity When Date Range
Transplant Outdoors April 1 Apr 1 – Apr 15
Harvest June 3 Jun 3 – Aug 12

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

1"/week · Natural rainfall sufficient

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8a

📆 Growing Season

226 days in Sevier County

Growing Tips for Comfrey in Sevier County

Direct sow Comfrey outdoors after March 25 in Sevier County when soil has warmed and frost danger has passed.

General growing tips

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 Sevier County, AR?

Sevier County is in Zone 8a with an average last frost of March 25. Plan your Comfrey planting based on this frost date — see the calendar above for exact timing.

What planting zone is Sevier County, AR?

Sevier County, Arkansas is in USDA Hardiness Zone 8a. The average last spring frost is March 25 and first fall frost is November 6.

When should I plant Comfrey in Sevier County, AR?

In Sevier County, AR, plant Comfrey after the last frost (around March 25) and before the first frost (around November 6). Best results when soil holds above 50°F.

What growing zone is Sevier County, AR for Comfrey?

Sevier County sits in USDA Zone 8a. Comfrey grows reliably in zones 3a through 9b, so it's a good fit here.

Can Comfrey grow in Sevier County's climate?

Yes — Comfrey grows well in Sevier County's temperate climate. Sevier County averages a 226-day frost-free season, with last frost around March 25 and first frost around November 6.

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Your Sevier County Garden Planner — Free

A 22-page printable planner built for Sevier 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 Sevier County, AR. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.