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When to Plant Yarrow in Tate County, MS

Tate County, Mississippi Zone 8a May

Your May planting checklist for Tate County, Mississippi

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Tate County, Mississippi.

Avg. last frost March 27
Avg. first frost October 31
Soil temp (4") 67°F
Watering Low
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.

Tate County, Mississippi is in USDA Zone 8a. The average last spring frost is March 27 and the first fall frost is October 31, giving you a growing season of approximately 218 days.

At an elevation of 374 feet, Tate County receives approximately 61.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 89°F, providing good warmth for Yarrow during the growing season. Clay soil retains moisture well for Yarrow, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Yarrow root diseases.

Tate County, MS (Zone 8a) Long season
218 days
Last Spring Frost March 27
218 growing days
First Fall Frost October 31

Tate County Soil Profile

Soil Type

Clay Loam

Soil pH

5.8-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (46 days to spare)
Transplant: Mar 27 🍅 Harvest: Jun 26 – Sep 11
Recommended (50%) ✓ Fits season (43 days to spare)
Transplant: Apr 3 🍅 Harvest: Jul 3 – Sep 18
Safe Start (90%) ✓ Fits season (47 days to spare)
Transplant: Apr 22 🍅 Harvest: Jul 22 – Oct 7

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 Tate County

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

Soil pH

Your soil pH (5.8–6.8) is within Yarrow's preferred range (5.5–7.0).

Soil Texture

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

Drainage

Yarrow prefers dry conditions but your soil drains poorly. Use raised beds or mounded rows to prevent root rot.

Organic Matter

Organic matter is moderate (2.6%). 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 5.7" 0" ❄️ Dormant
Feb 5" 0" ❄️ Dormant
Mar 2.2" 6" 0" ✅ Rainfall sufficient
Apr 2.2" 5.1" 0" ✅ Rainfall sufficient
May 2.2" 4.3" 0" ✅ Rainfall sufficient
Jun 2.2" 5.7" 0" ✅ Rainfall sufficient
Jul 2.2" 5.6" 0" ✅ Rainfall sufficient
Aug 2.2" 6.1" 0" ✅ Rainfall sufficient
Sep 2.2" 4.3" 0" ✅ Rainfall sufficient
Oct 2.2" 4.1" 0" ✅ Rainfall sufficient
Nov 4.2" 0" ❄️ Dormant
Dec 5.4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Oct in Tate 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 ~1,759 GDD — county provides 3,651 GDD Excellent fit

Yarrow Planting Timeline — Tate County, MS

Yarrow Planting Calendar

Activity When Date Range
Transplant Outdoors April 3 Apr 3 – Apr 17
Harvest July 3 Jul 3 – Sep 18

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

90–120 days

🧪 Soil pH

Needs 5.5–7 · Your soil: ideal

🗺️ USDA Zone

Zone 8a

📆 Growing Season

218 days in Tate County

Growing Tips for Yarrow in Tate County

Direct sow Yarrow outdoors after March 27 in Tate County when soil has warmed and frost danger has passed.

With Tate County's clay soil (31% clay), work in 3-4 inches of compost before planting Yarrow. Avoid tilling when soil is wet to prevent compaction.

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 Tate County, MS?

Tate County is in Zone 8a with an average last frost of March 27. Plan your Yarrow planting based on this frost date — see the calendar above for exact timing.

What planting zone is Tate County, MS?

Tate County, Mississippi is in USDA Hardiness Zone 8a. The average last spring frost is March 27 and first fall frost is October 31.

🌱

Your Tate County Garden Planner — Free

A 24-page printable planner built for Tate 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 Tate County, MS. 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.