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When to Plant Yarrow in Pawnee County, KS

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.

Pawnee County, Kansas is in USDA Zone 6a. The average last spring frost is April 18 and the first fall frost is October 16, giving you a growing season of approximately 181 days.

At an elevation of 621 feet, Pawnee County receives approximately 34.4 inches of rainfall annually with predominantly loam soil. Summer highs average 89ยฐF, providing good warmth for Yarrow during the growing season.

Pawnee County, KS (Zone 6a) Moderate season
181 days
Last Spring Frost April 18
181 growing days
First Fall Frost October 16

Pawnee County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (4 days to spare)
Transplant: Apr 21 🍅 Harvest: Jul 21 – Oct 6
Recommended (50%) ✓ Fits season (6 days to spare)
Transplant: Apr 25 🍅 Harvest: Jul 25 – Oct 10
Safe Start (90%) ✓ Fits season (10 days to spare)
Transplant: May 10 🍅 Harvest: Aug 9 – Oct 25

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
Drought risk

Water stress score is 8/10 โ€” consider drought-tolerant varieties and mulching

Yarrow needs ~1,759 GDD — county provides 3,031 GDD Excellent fit

Yarrow Planting Timeline โ€” Pawnee County, KS

Yarrow Planting Calendar

Activity When Date Range
Transplant Outdoors April 25 Apr 25 โ€“ May 9
Harvest July 25 Jul 25 โ€“ Oct 10

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 Transplant Outdoors
June โ€”
July Harvest
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 6a

Growing Season

181 days

Growing Tips for Pawnee 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 Pawnee County, KS?

Pawnee County is in Zone 6a with an average last frost of April 18. Plan your Yarrow planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Pawnee County, KS?

Pawnee County, Kansas is in USDA Hardiness Zone 6a. The average last spring frost is April 18 and first fall frost is October 16.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Pawnee County gardeners in Zone 6a 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 Pawnee County, KS. Local conditions may vary. Last updated: April 2026.