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When to Plant Yarrow in Pushmataha County, OK

Pushmataha County, Oklahoma Zone 8a May

This month in Pushmataha County, Oklahoma

A quick May briefing for Pushmataha County, Oklahoma gardeners — what's urgent, what's next, and what can wait.

Avg. last frost April 2
Avg. first frost November 1
Soil temp (4") 68°F
Watering Moderate
Pest pressure Moderate
Daylight 13.8 hrs

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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.

Pushmataha County, Oklahoma is in USDA Zone 8a. The average last spring frost is April 2 and the first fall frost is November 1, giving you a growing season of approximately 213 days.

At an elevation of 465 feet, Pushmataha County receives approximately 22.1 inches of rainfall annually with predominantly loam soil. Summer highs average 90°F, providing good warmth for Yarrow during the growing season.

Pushmataha County, OK (Zone 8a) Long season
213 days
Last Spring Frost April 2
213 growing days
First Fall Frost November 1
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Pushmataha County Soil Profile

Soil Type

Loam

Soil pH

6.3-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (44 days to spare)
Transplant: Mar 29 🍅 Harvest: Jun 28 – Sep 13
Recommended (50%) ✓ Fits season (38 days to spare)
Transplant: Apr 9 🍅 Harvest: Jul 9 – Sep 24
Safe Start (90%) ✓ Fits season (45 days to spare)
Transplant: Apr 25 🍅 Harvest: Jul 25 – Oct 10

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 Pushmataha County

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

Soil pH

Your soil pH (6.3–7.8) is more alkaline than Yarrow prefers (5.5–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in Pushmataha County is excellent for Yarrow — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (4.0%). Annual compost additions will help Yarrow.

How to Plant Yarrow

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

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.4″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 146 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Yarrow

Yarrow needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Yarrow Needs Rainfall You Supplement Action
Jan 0.5" 0" ❄️ Dormant
Feb 0.7" 0" ❄️ Dormant
Mar 1.5" 0" ❄️ Dormant
Apr 2.2" 2.4" 0" ✅ Rainfall sufficient
May 2.2" 3.3" 0" ✅ Rainfall sufficient
Jun 2.2" 3.3" 0" ✅ Rainfall sufficient
Jul 2.2" 2.6" 0" ✅ Rainfall sufficient
Aug 2.2" 2.9" 0" ✅ Rainfall sufficient
Sep 2.2" 2" 0.2" 💧 Light watering
Oct 2.2" 1.4" 0.8" 💧 Light watering
Nov 2.2" 0.8" 1.4" 🚿 Regular watering
Dec 0.6" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Nov in Pushmataha County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Yarrow Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Yarrow needs ~1,838 GDD — county provides 3,727 GDD Excellent fit

Yarrow Planting Timeline — Pushmataha County, OK

Yarrow Planting Calendar

Activity When Date Range
Transplant Outdoors April 9 Apr 9 – Apr 23
Harvest July 9 Jul 9 – Sep 24

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

Month-by-Month Timeline

MonthActivities
January
February
March
April Transplant Outdoors
May
June
July Harvest
August Harvest
September Harvest
October
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Only during dry spells

📅 Days to Maturity

90–120 days

🧪 Soil pH

Needs 5.5–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 8a

📆 Growing Season

213 days in Pushmataha County

Growing Tips for Yarrow in Pushmataha County

Direct sow Yarrow outdoors after April 02 in Pushmataha 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.

Pushmataha County receives only 22" of rain annually. Yarrow needs consistent moisture — 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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Yarrow in Pushmataha County, OK?

Pushmataha County is in Zone 8a with an average last frost of April 2. Plan your Yarrow planting based on this frost date — see the calendar above for exact timing.

What planting zone is Pushmataha County, OK?

Pushmataha County, Oklahoma is in USDA Hardiness Zone 8a. The average last spring frost is April 2 and first fall frost is November 1.

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Your Pushmataha County Garden Planner — Free

A 24-page printable planner built for Pushmataha County (Zone 8a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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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 Pushmataha County, OK. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.