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When to Plant Yarrow in Real County, TX

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.

Real County, Texas is in USDA Zone 8a. The average last spring frost is March 31 and the first fall frost is November 8, giving you a growing season of approximately 222 days.

At an elevation of 4,368 feet, Real County receives approximately 60.8 inches of rainfall annually with predominantly loam soil. Summer highs average 96ยฐF, so Yarrow may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Yarrow root diseases.

Real County, TX (Zone 8a) Long season
222 days
Last Spring Frost March 31
222 growing days
First Fall Frost November 8

Real County Soil Profile

Soil Type

Loam

Soil pH

6.6-7.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (49 days to spare)
Transplant: Mar 25 🍅 Harvest: Jun 24 – Sep 9
Recommended (50%) ✓ Fits season (47 days to spare)
Transplant: Apr 7 🍅 Harvest: Jul 7 – Sep 22
Safe Start (90%) ✓ Fits season (48 days to spare)
Transplant: Apr 26 🍅 Harvest: Jul 26 – Oct 11

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 Real County

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

Soil pH

Your soil pH (6.6โ€“7.7) is more alkaline than Yarrow prefers (5.5โ€“7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.2%). 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
1.2″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

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 โ€” 1.5" 0" โ„๏ธ Dormant
Feb โ€” 2" 0" โ„๏ธ Dormant
Mar 2.2" 3.4" 0" โœ… Rainfall sufficient
Apr 2.2" 6.8" 0" โœ… Rainfall sufficient
May 2.2" 9.8" 0" โœ… Rainfall sufficient
Jun 2.2" 8.8" 0" โœ… Rainfall sufficient
Jul 2.2" 8.5" 0" โœ… Rainfall sufficient
Aug 2.2" 7.7" 0" โœ… Rainfall sufficient
Sep 2.2" 4.9" 0" โœ… Rainfall sufficient
Oct 2.2" 3.7" 0" โœ… Rainfall sufficient
Nov 2.2" 2.1" 0.1" ๐Ÿ’ง Light watering
Dec โ€” 1.7" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Real County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 ~2,310 GDD — county provides 4,884 GDD Excellent fit

Yarrow Planting Timeline โ€” Real County, TX

Yarrow Planting Calendar

Activity When Date Range
Transplant Outdoors April 7 Apr 7 โ€“ Apr 21
Harvest July 7 Jul 7 โ€“ Sep 22

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

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.5"/week ยท Natural rainfall sufficient

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 8a

๐Ÿ“† Growing Season

222 days in Real County

Growing Tips for Yarrow in Real County

Direct sow Yarrow outdoors after March 31 in Real County when soil has warmed and frost danger has passed.

With summer highs reaching 96ยฐF in Real County, provide afternoon shade for Yarrow and water deeply in the morning.

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

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 Real County, TX?

Real County is in Zone 8a with an average last frost of March 31. Plan your Yarrow planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Real County, TX?

Real County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 31 and first fall frost is November 8.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Real County gardeners in Zone 8a 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 Real County, TX. Local conditions may vary. Last updated: April 2026.