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When to Plant Echinacea in Franklin County, AR

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

Franklin County, Arkansas is in USDA Zone 7a. The average last spring frost is March 29 and the first fall frost is November 1, giving you a growing season of approximately 217 days.

At an elevation of 1,224 feet, Franklin County receives approximately 47.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90Β°F, providing good warmth for Echinacea during the growing season.

Franklin County, AR (Zone 7a) Long season
217 days
Last Spring Frost March 29
217 growing days
First Fall Frost November 1

Franklin County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-6.6

Drainage

Well Drained

Monthly Watering Guide for Echinacea

Echinacea needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Echinacea Needs Rainfall You Supplement Action
Jan β€” 3.5" 0" ❄️ Dormant
Feb β€” 3.9" 0" ❄️ Dormant
Mar 4.3" 5.1" 0" βœ… Rainfall sufficient
Apr 4.3" 3.2" 1.1" πŸ’§ Light watering
May 4.3" 4.2" 0.1" πŸ’§ Light watering
Jun 4.3" 4" 0.3" πŸ’§ Light watering
Jul 4.3" 5.1" 0" βœ… Rainfall sufficient
Aug 4.3" 4.9" 0" βœ… Rainfall sufficient
Sep 4.3" 4" 0.3" πŸ’§ Light watering
Oct 4.3" 2.7" 1.6" πŸ’§ Light watering
Nov 4.3" 3.2" 1.1" πŸ’§ Light watering
Dec β€” 3.3" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Franklin County). Supplement amounts are based on average rainfall β€” actual needs vary with temperature, soil, and mulching.

Echinacea Planting Timeline β€” Franklin County, AR

Echinacea Planting Calendar

Activity When Date Range
Transplant Outdoors April 5 Apr 5 – Apr 19
Harvest August 9 Aug 9 – Nov 15

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

Month-by-Month Timeline

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

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

Low β€” drought tolerant

πŸ“… Days to Maturity

120–180 days

πŸ§ͺ Soil pH

Needs 6–7 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 7a

πŸ“† Growing Season

217 days in Franklin County

Growing Tips for Franklin 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 Franklin County, AR?

Franklin County is in Zone 7a with an average last frost of March 29. Plan your Echinacea planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Franklin County, AR?

Franklin County, Arkansas is in USDA Hardiness Zone 7a. The average last spring frost is March 29 and first fall frost is November 1.

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Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Franklin County gardeners in Zone 7a organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Franklin County, AR. Local conditions may vary. Last updated: April 2026.