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When to Plant Yarrow in Murray County, OK

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.

Murray County, Oklahoma is in USDA Zone 7b. The average last spring frost is March 28 and the first fall frost is November 2, giving you a growing season of approximately 219 days.

At an elevation of 640 feet, Murray County receives approximately 23.2 inches of rainfall annually with predominantly loam soil. Summer highs average 94Β°F, providing good warmth for Yarrow during the growing season.

Murray County, OK (Zone 7b) Long season
219 days
Last Spring Frost March 28
219 growing days
First Fall Frost November 2

Murray County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.7

Drainage

Well Drained

Monthly Watering Guide for Yarrow

Yarrow needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Yarrow Needs Rainfall You Supplement Action
Jan β€” 0.6" 0" ❄️ Dormant
Feb β€” 0.8" 0" ❄️ Dormant
Mar 4.3" 1.4" 2.9" 🚿 Regular watering
Apr 4.3" 2.3" 2" πŸ’§ Light watering
May 4.3" 3.5" 0.8" πŸ’§ Light watering
Jun 4.3" 3.5" 0.8" πŸ’§ Light watering
Jul 4.3" 2.8" 1.5" πŸ’§ Light watering
Aug 4.3" 3.1" 1.2" πŸ’§ Light watering
Sep 4.3" 2.3" 2" πŸ’§ Light watering
Oct 4.3" 1.4" 2.9" 🚿 Regular watering
Nov 4.3" 0.8" 3.5" 🚿 Regular watering
Dec β€” 0.6" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Murray County). Supplement amounts are based on average rainfall β€” actual needs vary with temperature, soil, and mulching.

Yarrow Planting Timeline β€” Murray County, OK

Yarrow Planting Calendar

Activity When Date Range
Transplant Outdoors April 4 Apr 4 – Apr 18
Harvest July 4 Jul 4 – Sep 19

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

Month-by-Month Timeline

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

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

Low β€” drought tolerant

πŸ“… Days to Maturity

90–120 days

πŸ§ͺ Soil pH

Needs 5.5–7 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 7b

πŸ“† Growing Season

219 days in Murray County

Growing Tips for Murray 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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Yarrow in Murray County, OK?

Murray County is in Zone 7b with an average last frost of March 28. Plan your Yarrow planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Murray County, OK?

Murray County, Oklahoma is in USDA Hardiness Zone 7b. The average last spring frost is March 28 and first fall frost is November 2.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Murray County gardeners in Zone 7b 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 Murray County, OK. Local conditions may vary. Last updated: April 2026.