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When to Plant Comfrey in Catawba County, NC

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

Catawba County, North Carolina is in USDA Zone 7b. The average last spring frost is March 30 and the first fall frost is November 1, giving you a growing season of approximately 216 days.

At an elevation of 164 feet, Catawba County receives approximately 52 inches of rainfall annually with predominantly clay loam soil. Summer highs average 94ยฐF, 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.

Catawba County, NC (Zone 7b) Long season
216 days
Last Spring Frost March 30
216 growing days
First Fall Frost November 1

Catawba County Soil Profile

Soil Type

Clay Loam

Soil pH

5.6-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (77 days to spare)
Transplant: Mar 31 🍅 Harvest: Jun 2 – Aug 11
Recommended (50%) ✓ Fits season (76 days to spare)
Transplant: Apr 6 🍅 Harvest: Jun 8 – Aug 17
Safe Start (90%) ✓ Fits season (72 days to spare)
Transplant: Apr 23 🍅 Harvest: Jun 25 – Sep 3

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.

Plant Water Budget

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

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Comfrey needs ~1,538 GDD — county provides 4,428 GDD Excellent fit

Comfrey Planting Timeline โ€” Catawba County, NC

Comfrey Planting Calendar

Activity When Date Range
Transplant Outdoors April 6 Apr 6 โ€“ Apr 20
Harvest June 8 Jun 8 โ€“ Aug 17

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Partial Shade (3-6 hours)

Water

Moderate โ€” regular watering

Days to Maturity

60โ€“90 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 7b

Growing Season

216 days

Growing Tips for Catawba 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

Level Up Your Garden

Frequently Asked Questions

When should I plant Comfrey in Catawba County, NC?

Catawba County is in Zone 7b with an average last frost of March 30. Plan your Comfrey planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Catawba County, NC?

Catawba County, North Carolina is in USDA Hardiness Zone 7b. The average last spring frost is March 30 and first fall frost is November 1.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Catawba County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

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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 Catawba County, NC. Local conditions may vary. Last updated: April 2026.