Blog

When to Plant Yarrow in Coshocton County, OH

Yarrow is a drought-tolerant perennial herb with feathery foliage and flat-topped flower clusters in white, yellow, pink, or red. It attracts beneficial insects and is used in herbal medicine.

Coshocton County, Ohio is in USDA Zone 5b. The average last spring frost is April 29 and the first fall frost is October 12, giving you a growing season of approximately 166 days.

At an elevation of 757 feet, Coshocton County receives approximately 30.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87ยฐF, providing good warmth for Yarrow during the growing season.

Coshocton County, OH (Zone 5b) Moderate season
166 days
Last Spring Frost April 29
166 growing days
First Fall Frost October 12

Coshocton County Soil Profile

Soil Type

Silt Loam

Soil pH

6.1-7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: May 4 🍅 Harvest: Aug 3 – Oct 19
Recommended (50%) ✗ May not fit
Transplant: May 6 🍅 Harvest: Aug 5 – Oct 21
Safe Start (90%) ✗ May not fit
Transplant: May 24 🍅 Harvest: Aug 23 – Nov 8

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
0.5″/week
Rainfall provides
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Yarrow needs ~1,601 GDD — county provides 2,531 GDD Excellent fit

Yarrow Planting Timeline โ€” Coshocton County, OH

Yarrow Planting Calendar

Activity When Date Range
Transplant Outdoors May 6 May 6 โ€“ May 20
Harvest August 5 Aug 5 โ€“ Oct 21

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Low โ€” drought tolerant

Days to Maturity

90โ€“120 days

Soil pH

5.5 โ€“ 7

USDA Zone

Zone 5b

Growing Season

166 days

Growing Tips for Coshocton County

Direct sow or start from divisions. Yarrow thrives in poor soil and is very drought-tolerant. Deadhead to encourage reblooming. Divide clumps every 3 years.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant Yarrow in Coshocton County, OH?

Coshocton County is in Zone 5b with an average last frost of April 29. Plan your Yarrow planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Coshocton County, OH?

Coshocton County, Ohio is in USDA Hardiness Zone 5b. The average last spring frost is April 29 and first fall frost is October 12.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Coshocton County gardeners in Zone 5b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Coshocton County, OH. Local conditions may vary. Last updated: April 2026.