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When to plant Comfrey in Sharkey County, MS

Sharkey County's short 258-day growing season means one Comfrey planting between March 12 and March 26. No fall crop in Zone 8b.

When to Plant Comfrey in Sharkey County, MS

Sharkey County, Mississippi Zone 8b July

Your July gardening checklist

If you only do a handful of things in the garden this July, make it these. They're sequenced around your zone's frost timing.

Avg. last frost March 5
Avg. first frost November 18
Soil temp (4") 92°F
Watering Low
Pest pressure High
Daylight 14 hrs
  1. It's harvest week for comfrey

    Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.

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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.

Sharkey County, Mississippi is in USDA Zone 8b. The average last spring frost is March 5 and the first fall frost is November 18, giving you a growing season of approximately 258 days.

At an elevation of 460 feet, Sharkey County receives approximately 55.5 inches of rainfall annually with predominantly clay loam soil. Summer highs average 91°F, providing good warmth for Comfrey during the growing season. Clay soil retains moisture well for Comfrey, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Comfrey root diseases.

Sharkey County, MS (Zone 8b) Long season
258 days
Last Spring Frost March 5
258 growing days
First Fall Frost November 18

Sharkey County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.8

Drainage

Well Drained

Comfrey Planting Risk Windows

Early Start (70% safe) ✓ Fits season (121 days to spare)
Transplant: Mar 5 🍅 Harvest: May 7 – Jul 16
Recommended (50%) ✓ Fits season (118 days to spare)
Transplant: Mar 12 🍅 Harvest: May 14 – Jul 23
Safe Start (90%) ✓ Fits season (114 days to spare)
Transplant: Mar 29 🍅 Harvest: May 31 – Aug 9

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 Sharkey County

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

Soil pH

Your soil pH (5.5–6.8) overlaps with Comfrey's range (6.0–7.0), though not a perfect match.

Soil Texture

The clay loam soil in Sharkey 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 (2.2%). Annual compost additions will help Comfrey.

How to Plant Comfrey

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

Succession Planting Comfrey

5
successive plantings in your 258-day season

Sow every 6.9 weeks. Last sowing by Aug 20 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

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 4.8" 0" ❄️ Dormant
Feb 4.2" 0" ❄️ Dormant
Mar 4.3" 5.5" 0" ✅ Rainfall sufficient
Apr 4.3" 4.6" 0" ✅ Rainfall sufficient
May 4.3" 3.9" 0.4" 💧 Light watering
Jun 4.3" 4.6" 0" ✅ Rainfall sufficient
Jul 4.3" 6.4" 0" ✅ Rainfall sufficient
Aug 4.3" 4.9" 0" ✅ Rainfall sufficient
Sep 4.3" 4.7" 0" ✅ Rainfall sufficient
Oct 4.3" 3.4" 0.9" 💧 Light watering
Nov 4.3" 3.7" 0.6" 💧 Light watering
Dec 4.7" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Sharkey 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 ~1,369 GDD — county provides 4,708 GDD Excellent fit

Comfrey Planting Timeline — Sharkey County, MS

Comfrey Planting Calendar

Activity When Date Range
Transplant Outdoors March 12 Mar 12 – Mar 26
Harvest May 14 May 14 – Jul 23

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

Month-by-Month Timeline

MonthActivities
January
February
March Transplant Outdoors
April
May Harvest
June Harvest
July Harvest
August
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: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

258 days in Sharkey County

Growing Tips for Comfrey in Sharkey County

Direct sow Comfrey outdoors after March 05 in Sharkey County when soil has warmed and frost danger has passed.

With Sharkey County's clay soil (29% clay), work in 3-4 inches of compost before planting Comfrey. Avoid tilling when soil is wet to prevent compaction.

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 Sharkey County, MS?

Sharkey County is in Zone 8b with an average last frost of March 5. Plan your Comfrey planting based on this frost date — see the calendar above for exact timing.

What planting zone is Sharkey County, MS?

Sharkey County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 5 and first fall frost is November 18.

When should I plant Comfrey in Sharkey County, MS?

In Sharkey County, MS, plant Comfrey after the last frost (around March 5) and before the first frost (around November 18). Best results when soil holds above 50°F.

What growing zone is Sharkey County, MS for Comfrey?

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

Can Comfrey grow in Sharkey County's climate?

Yes — Comfrey grows well in Sharkey County's temperate climate. Sharkey County averages a 258-day frost-free season, with last frost around March 5 and first frost around November 18.

🌱

Your Sharkey County Garden Planner — Free

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

Sources & credits

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