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When to Plant Yarrow in Independence County, AR

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.

Independence County, Arkansas is in USDA Zone 7a. The average last spring frost is March 26 and the first fall frost is November 3, giving you a growing season of approximately 222 days.

At an elevation of 1,405 feet, Independence County receives approximately 46.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91ยฐF, providing good warmth for Yarrow during the growing season.

Independence County, AR (Zone 7a) Long season
222 days
Last Spring Frost March 26
222 growing days
First Fall Frost November 3

Independence County Soil Profile

Soil Type

Silt Loam

Soil pH

5.6-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (53 days to spare)
Transplant: Mar 21 🍅 Harvest: Jun 20 – Sep 5
Recommended (50%) ✓ Fits season (47 days to spare)
Transplant: Apr 2 🍅 Harvest: Jul 2 – Sep 17
Safe Start (90%) ✓ Fits season (50 days to spare)
Transplant: Apr 21 🍅 Harvest: Jul 21 – Oct 6

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
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Yarrow needs ~1,916 GDD — county provides 4,051 GDD Excellent fit

Yarrow Planting Timeline โ€” Independence County, AR

Yarrow Planting Calendar

Activity When Date Range
Transplant Outdoors April 2 Apr 2 โ€“ Apr 16
Harvest July 2 Jul 2 โ€“ Sep 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 โ€”
July Harvest
August Harvest
September Harvest
October โ€”
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 7a

Growing Season

222 days

Growing Tips for Independence 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 Independence County, AR?

Independence County is in Zone 7a with an average last frost of March 26. Plan your Yarrow planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Independence County, AR?

Independence County, Arkansas is in USDA Hardiness Zone 7a. The average last spring frost is March 26 and first fall frost is November 3.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Independence County gardeners in Zone 7a 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 Independence County, AR. Local conditions may vary. Last updated: April 2026.