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When to Plant Echinacea in Frederick County, VA

Echinacea (purple coneflower) is a native prairie perennial valued for its immune-supporting properties and beautiful daisy-like flowers that attract pollinators.

Frederick County, Virginia is in USDA Zone 6b. The average last spring frost is April 24 and the first fall frost is October 18, giving you a growing season of approximately 177 days.

At an elevation of 743 feet, Frederick County receives approximately 44.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88ยฐF, providing good warmth for Echinacea during the growing season.

Frederick County, VA (Zone 6b) Moderate season
177 days
Last Spring Frost April 24
177 growing days
First Fall Frost October 18

Frederick County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: Apr 23 🍅 Harvest: Aug 27 – Nov 5
Recommended (50%) ✗ May not fit
Transplant: May 1 🍅 Harvest: Sep 4 – Nov 13
Safe Start (90%) ✗ May not fit
Transplant: May 21 🍅 Harvest: Sep 24 – Dec 3

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.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Echinacea needs ~2,400 GDD — county provides 2,832 GDD Good fit

Echinacea Planting Timeline โ€” Frederick County, VA

Echinacea Planting Calendar

Activity When Date Range
Transplant Outdoors May 1 May 1 โ€“ May 15
Harvest September 4 Sep 4 โ€“ Nov 13

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April โ€”
May Transplant Outdoors
June โ€”
July โ€”
August โ€”
September Harvest
October Harvest
November Harvest
December โ€”

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Low โ€” drought tolerant

Days to Maturity

120โ€“180 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 6b

Growing Season

177 days

Growing Tips for Frederick County

Start seeds indoors 8-10 weeks before last frost or direct sow in fall for spring germination. Seeds need cold stratification. Deadhead to prolong blooming or leave seed heads for birds.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant Echinacea in Frederick County, VA?

Frederick County is in Zone 6b with an average last frost of April 24. Plan your Echinacea planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Frederick County, VA?

Frederick County, Virginia is in USDA Hardiness Zone 6b. The average last spring frost is April 24 and first fall frost is October 18.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Frederick County gardeners in Zone 6b organize planting dates, track what's growing, and never miss a planting window.

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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 Frederick County, VA. Local conditions may vary. Last updated: April 2026.