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When to plant Comfrey in Excel, AL

Excel sits in cold Zone 8b. Plant Comfrey March 21–April 4 for the single annual harvest; the November 14 first frost closes the window.

When to Plant Comfrey in Excel, AL

Monroe County, Alabama Zone 8b July

July in Monroe County, Alabama — your action list

July rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Monroe County, Alabama.

Avg. last frost March 14
Avg. first frost November 14
Soil temp (4") 89°F
Watering Low
Pest pressure High
Daylight 13.9 hrs
  1. Collect comfrey at their peak

    If you can't use it all right away, check the food-preservation section of your planner.

A few tasks this July that'll pay off in August
  • 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.

Excel, Alabama is in USDA Zone 8b. The average last spring frost is March 14 and the first fall frost is November 14, giving you a growing season of approximately 245 days.

At an elevation of 177 feet, Monroe County receives approximately 51.5 inches of rainfall annually with predominantly clay loam soil. Summer highs average 96°F, so Comfrey may need afternoon shade and extra watering during peak heat. 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.

Excel, AL (Zone 8b) Long season
245 days
Last Spring Frost March 14
245 growing days
First Fall Frost November 14

Excel Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.3

Drainage

Well Drained

Comfrey Planting Risk Windows

Early Start (70% safe) ✓ Fits season (104 days to spare)
Transplant: Mar 13 🍅 Harvest: May 15 – Jul 24
Recommended (50%) ✓ Fits season (105 days to spare)
Transplant: Mar 21 🍅 Harvest: May 23 – Aug 1
Safe Start (90%) ✓ Fits season (105 days to spare)
Transplant: Apr 7 🍅 Harvest: Jun 9 – Aug 18

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 Excel

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

Soil pH

Your soil pH (5.6–6.3) is more acidic than Comfrey prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.8%). 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 245-day season

Sow every 6.9 weeks. Last sowing by Aug 16 to harvest before frost.

Comfrey Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 255 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 4.7" 0" ❄️ Dormant
Feb 3.6" 0" ❄️ Dormant
Mar 4.3" 5.1" 0" ✅ Rainfall sufficient
Apr 4.3" 4.3" 0" ✅ Rainfall sufficient
May 4.3" 3.7" 0.6" 💧 Light watering
Jun 4.3" 4" 0.3" 💧 Light watering
Jul 4.3" 4.7" 0" ✅ Rainfall sufficient
Aug 4.3" 5.3" 0" ✅ Rainfall sufficient
Sep 4.3" 4.3" 0" ✅ Rainfall sufficient
Oct 4.3" 3.3" 1" 💧 Light watering
Nov 4.3" 4" 0.3" 💧 Light watering
Dec 4.7" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Monroe 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 ~1,650 GDD — county provides 5,390 GDD Excellent fit

Comfrey Planting Timeline — Excel, AL

Comfrey Planting Calendar

Activity When Date Range
Transplant Outdoors March 21 Mar 21 – Apr 4
Harvest May 23 May 23 – Aug 1

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

Month-by-Month Timeline

MonthActivities
January
February
March Transplant Outdoors
April Transplant Outdoors
May Harvest
June Harvest
July Harvest
August Harvest
September
October
November
December

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 8b

📆 Growing Season

245 days in Monroe County

Growing Tips for Comfrey in Excel

Direct sow Comfrey outdoors after March 14 in Monroe County when soil has warmed and frost danger has passed.

With Monroe County's clay soil (26% clay), work in 3-4 inches of compost before planting Comfrey. Avoid tilling when soil is wet to prevent compaction.

With summer highs reaching 96°F in Monroe County, provide afternoon shade for Comfrey and water deeply in the morning.

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 →

When should I plant Comfrey in Excel, AL?

In Excel, AL, plant Comfrey after the last frost (around March 14) and before the first frost (around November 14). Best results when soil holds above 50°F.

What growing zone is Excel, AL for Comfrey?

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

Can Comfrey grow in Excel's climate?

Yes — Comfrey grows well in Excel's temperate climate. Excel averages a 245-day frost-free season, with last frost around March 14 and first frost around November 14.

🌱

Your Monroe County Garden Planner — Free

A 22-page printable planner built for Monroe 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 Monroe County, AL. Local conditions may vary. Last updated: July 2026.