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When to plant Yarrow in Copiah County, MS

Plant Yarrow in Copiah County, when soil hits 50°F — usually February 28. Continue planting through March 21 for the spring crop.

When to Plant Yarrow in Copiah County, MS

Achillea millefolium (Yarrow) is a tough, drought-tolerant native perennial with aromatic finely-divided foliage and broad flat-topped flower clusters that serve as a landing platform for hundreds of beneficial insect species. Available in white (the species type) and a wide range of cultivars spanning yellow, gold, pink, salmon, and deep red. Spreads by rhizome to form ground-covering colonies; blooms from late spring through midsummer with reblooming into fall if deadheaded. Exceptional in hot, dry sites where other perennials fail.

Copiah County, Mississippi is in USDA Zone 8b. The average last spring frost is March 14 and the first fall frost is November 12, giving you a growing season of approximately 243 days.

At an elevation of 335 feet, Copiah County receives approximately 60.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 92°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.

Perennial Blooms in Summer Pollinator-friendly Deer-resistant Good for cutting Fragrant
Copiah County, MS (Zone 8b) Long season
243 days
Last Spring Frost March 14
243 growing days
First Fall Frost November 12

Copiah County Soil Profile

Soil Type

Clay Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Yarrow Planting Timeline — Copiah County, MS

Yarrow Planting Calendar

Activity When Date Range
Start Indoors January 17 Jan 17 – Jan 31
Transplant Outdoors March 14 Mar 14 – Mar 28
Direct Sow February 28 Feb 28 – Mar 21
Bloom May 16 May 16 – Oct 10

· 18" apart · Rows 24" apart

Month-by-Month Timeline

MonthActivities
January Start Indoors
February Direct Sow
March Transplant Outdoors Direct Sow
April
May Bloom
June Bloom
July Bloom
August Bloom
September Bloom
October Bloom
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Low — drought tolerant

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 5.5–7 · Your soil: N/A

🗺️ USDA Zone

Zone 8b

📆 Growing Season

243 days in Copiah County

Growing Tips for Copiah County

Start seeds indoors 8–10 weeks before last frost; seeds need light for germination — press onto soil surface, do not cover. Direct sow after last frost or divide established clumps in spring or fall. Thrives in poor, well-drained soil — rich soil and high fertility cause floppy stems and reduce flower count. Avoid overwatering; excellent drought tolerance once established. Deadhead spent clusters to encourage rebloom. Divide every 2–3 years to prevent center die-out and control spread. Year 2+ plants bloom most heavily; first-year plants may produce limited flowers. Dried flowers retain color well for arrangements.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Yarrow in Copiah County, MS?

Copiah County is in Zone 8b with an average last frost of March 14. Plan your Yarrow planting based on this frost date — see the calendar above for exact timing.

What planting zone is Copiah County, MS?

Copiah County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 14 and first fall frost is November 12.

When should I plant Yarrow in Copiah County, MS?

In Copiah County, MS, plant Yarrow after the last frost (around March 14) and before the first frost (around November 12). Best results when soil holds above 50°F.

What growing zone is Copiah County, MS for Yarrow?

Copiah County sits in USDA Zone 8b. Yarrow grows reliably in zones 3a through 9b, so it's a good fit here.

Can Yarrow grow in Copiah County's climate?

Yes — Yarrow grows well in Copiah County's temperate climate. Copiah County averages a 243-day frost-free season, with last frost around March 14 and first frost around November 12.

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Your Copiah County Garden Planner — Free

A 22-page printable planner built for Copiah County (Zone 8b). 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 Copiah County, MS. Local conditions may vary. Last updated: June 2026.

Sources & credits

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