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When to Plant Yarrow in Texas 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.

Texas County, Oklahoma is in USDA Zone 6b. The average last spring frost is April 16 and the first fall frost is October 20, giving you a growing season of approximately 187 days.

At an elevation of 870 feet, Texas County receives approximately 20.3 inches of rainfall annually with predominantly loam soil. Summer highs average 89ยฐF, providing good warmth for Yarrow during the growing season.

Texas County, OK (Zone 6b) Moderate season
187 days
Last Spring Frost April 16
187 growing days
First Fall Frost October 20

Texas County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (11 days to spare)
Transplant: Apr 19 🍅 Harvest: Jul 19 – Oct 4
Recommended (50%) ✓ Fits season (12 days to spare)
Transplant: Apr 23 🍅 Harvest: Jul 23 – Oct 8
Safe Start (90%) ✓ Fits season (11 days to spare)
Transplant: May 9 🍅 Harvest: Aug 8 – Oct 24

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.

Soil Compatibility in Texas County

How your county's soil matches Yarrow's growing requirements.

Soil pH

Your soil pH (6.5โ€“7.8) is more alkaline than Yarrow prefers (5.5โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in Texas County is excellent for Yarrow โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is excellent (4.1%) โ€” Yarrow will thrive.

How to Plant Yarrow

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.5″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 88 gal / 100 sq ft
Drought risk

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

Yarrow needs ~1,759 GDD — county provides 3,132 GDD Excellent fit

Yarrow Planting Timeline โ€” Texas County, OK

Yarrow Planting Calendar

Activity When Date Range
Transplant Outdoors April 23 Apr 23 โ€“ May 7
Harvest July 23 Jul 23 โ€“ Oct 8

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

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.5"/week ยท Only during dry spells

๐Ÿ“… Days to Maturity

90โ€“120 days

๐Ÿงช Soil pH

Needs 5.5โ€“7 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 6b

๐Ÿ“† Growing Season

187 days in Texas County

Growing Tips for Yarrow in Texas County

Direct sow Yarrow outdoors after April 16 in Texas County when soil has warmed and frost danger has passed.

Common pests for Yarrow in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.

Texas County receives only 20" of rain annually. Yarrow needs consistent moisture โ€” install drip irrigation or water deeply 2-3 times per week.

General growing tips

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 Texas County, OK?

Texas County is in Zone 6b with an average last frost of April 16. Plan your Yarrow planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Texas County, OK?

Texas County, Oklahoma is in USDA Hardiness Zone 6b. The average last spring frost is April 16 and first fall frost is October 20.

๐ŸŒฑ

Plan Your Garden with Confidence

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