When to plant Yarrow in Cecil County, MD
Yarrow planted in Cecil County between March 30 and April 20 matures in 60–90 days — well before the October 31 first frost.
When to Plant Yarrow in Cecil County, MD
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.
Cecil County, Maryland is in USDA Zone 7b. The average last spring frost is April 6 and the first fall frost is October 31, giving you a growing season of approximately 208 days.
At an elevation of 1,021 feet, Cecil County receives approximately 45.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Yarrow during the growing season.
Cecil County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Yarrow Planting Timeline — Cecil County, MD
Yarrow Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 2 | Feb 2 – Feb 16 |
| Transplant Outdoors | April 13 | Apr 13 – Apr 27 |
| Direct Sow | March 30 | Mar 30 – Apr 20 |
| Bloom | June 15 | Jun 15 – Nov 2 |
· 18" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | Start Indoors |
| March | Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | — |
| June | Bloom |
| July | Bloom |
| August | Bloom |
| September | Bloom |
| October | Bloom |
| November | Bloom |
| 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 7b
📆 Growing Season
208 days in Cecil County
Growing Tips for Cecil 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 →
Yarrow in Other Locations
Frequently Asked Questions
When should I plant Yarrow in Cecil County, MD?
Cecil County is in Zone 7b with an average last frost of April 6. Plan your Yarrow planting based on this frost date — see the calendar above for exact timing.
What planting zone is Cecil County, MD?
Cecil County, Maryland is in USDA Hardiness Zone 7b. The average last spring frost is April 6 and first fall frost is October 31.
When should I plant Yarrow in Cecil County, MD?
In Cecil County, MD, plant Yarrow after the last frost (around April 6) and before the first frost (around October 31). Best results when soil holds above 50°F.
What growing zone is Cecil County, MD for Yarrow?
Cecil County sits in USDA Zone 7b. Yarrow grows reliably in zones 3a through 9b, so it's a good fit here.
Can Yarrow grow in Cecil County's climate?
Yes — Yarrow grows well in Cecil County's temperate climate. Cecil County averages a 208-day frost-free season, with last frost around April 6 and first frost around October 31.
Your Cecil County Garden Planner — Free
A 22-page printable planner built for Cecil County (Zone 7b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.