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When to Plant Echinacea in Berkeley County, SC

Berkeley County, South Carolina Zone 8b May

Top priorities for Berkeley County, South Carolina gardeners in May

Welcome to May in Zone 8b. These are the moves that will have the biggest impact on your growing season.

Avg. last frost February 29
Avg. first frost November 23
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 13.7 hrs

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

Berkeley County, South Carolina is in USDA Zone 8b. The average last spring frost is March 1 and the first fall frost is November 23, giving you a growing season of approximately 267 days.

At an elevation of 441 feet, Berkeley County receives approximately 52.8 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 93°F, providing good warmth for Echinacea during the growing season. Sandy soil warms quickly in spring — great for early planting — but Echinacea will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Echinacea root diseases.

Berkeley County, SC (Zone 8b) Long season
267 days
Last Spring Frost March 1
267 growing days
First Fall Frost November 23
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Berkeley County Soil Profile

Soil Type

Sandy Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Echinacea Planting Timeline — Berkeley County, SC

Echinacea Planting Calendar

Activity When Date Range
Transplant Outdoors March 8 Mar 8 – Mar 22
Harvest July 12 Jul 12 – Oct 18

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

Month-by-Month Timeline

MonthActivities
January
February
March Transplant Outdoors
April
May
June
July Harvest
August Harvest
September Harvest
October Harvest
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Low — drought tolerant

📅 Days to Maturity

120–180 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 8b

📆 Growing Season

267 days in Berkeley County

Growing Tips for Berkeley 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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Echinacea in Berkeley County, SC?

Berkeley County is in Zone 8b with an average last frost of March 1. Plan your Echinacea planting based on this frost date — see the calendar above for exact timing.

What planting zone is Berkeley County, SC?

Berkeley County, South Carolina is in USDA Hardiness Zone 8b. The average last spring frost is March 1 and first fall frost is November 23.

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Your Berkeley County Garden Planner — Free

A 24-page printable planner built for Berkeley 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 Berkeley County, SC. 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.