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When to plant Echinacea (Purple Coneflower) in Drew County, AR

Echinacea (Purple Coneflower) planted in Drew County between March 18 and April 8 matures in 70–90 days — well before the November 10 first frost.

When to Plant Echinacea (Purple Coneflower) in Drew County, AR

Drew County, Arkansas Zone 8b June

Your June game plan for Drew County, Arkansas

Your garden in Drew County, Arkansas is working on a schedule, even when you're not. Here's where you should be this June.

Avg. last frost March 18
Avg. first frost November 10
Soil temp (4") 82°F
Watering Low
Pest pressure High
Daylight 14.2 hrs
  1. Bring in the echinacea (purple coneflower)

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

A few tasks this June that'll pay off in July
  • First harvests: echinacea (purple coneflower)

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Echinacea purpurea (Purple Coneflower) is a long-lived native prairie perennial and one of the most valuable pollinator plants in North American gardens. Its distinctive daisy-like blooms — swept-back lavender-pink petals surrounding a spiny orange-brown cone — attract bees, butterflies, and goldfinches from summer into fall. Drought-tolerant once established, adaptable to average soils, and impressively long-lived; mature clumps bloom reliably for decades.

Drew County, Arkansas is in USDA Zone 8b. The average last spring frost is March 18 and the first fall frost is November 10, giving you a growing season of approximately 237 days.

At an elevation of 1,158 feet, Drew County receives approximately 54.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Echinacea (Purple Coneflower) during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Echinacea (Purple Coneflower) root diseases.

Perennial Blooms in Summer Pollinator-friendly Deer-resistant Good for cutting
Drew County, AR (Zone 8b) Long season
237 days
Last Spring Frost March 18
237 growing days
First Fall Frost November 10

Drew County Soil Profile

Soil Type

Silt Loam

Soil pH

5.6-6.8

Drainage

Well Drained

Echinacea (Purple Coneflower) Planting Risk Windows

Early Start (70% safe) ✓ Fits season (26 days to spare)
Start indoors: Jan 12 Transplant: Mar 9 🌸 Bloom: May 18 – Oct 5
Recommended (50%) ✓ Fits season (27 days to spare)
Start indoors: Jan 21 Transplant: Mar 18 🌸 Bloom: May 27 – Oct 14
Safe Start (90%) ✓ Fits season (25 days to spare)
Start indoors: Feb 11 Transplant: Apr 8 🌸 Bloom: Jun 17 – Nov 4

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.

Soil Compatibility in Drew County

How your county's soil matches Echinacea (Purple Coneflower)'s growing requirements.

Soil pH

Your soil pH (5.6–6.8) overlaps with Echinacea (Purple Coneflower)'s range (6.0–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Drew County is excellent for Echinacea (Purple Coneflower) — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Echinacea (Purple Coneflower).

How to Plant Echinacea (Purple Coneflower)

0.3"
Planting Depth
18"
Between Plants
24"
Between Rows

Succession Planting Echinacea (Purple Coneflower)

3
successive plantings in your 237-day season

Sow every 8 weeks. Last sowing by Aug 12 to harvest before frost.

Echinacea (Purple Coneflower) Water Budget

Plant needs
0.5″/week
Rainfall provides
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Echinacea (Purple Coneflower)

Echinacea (Purple Coneflower) needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Echinacea (Purple Coneflower) Needs Rainfall You Supplement Action
Jan 4.8" 0" ❄️ Dormant
Feb 3.9" 0" ❄️ Dormant
Mar 2.2" 5.2" 0" ✅ Rainfall sufficient
Apr 2.2" 4.5" 0" ✅ Rainfall sufficient
May 2.2" 4.9" 0" ✅ Rainfall sufficient
Jun 2.2" 5" 0" ✅ Rainfall sufficient
Jul 2.2" 5.7" 0" ✅ Rainfall sufficient
Aug 2.2" 5.5" 0" ✅ Rainfall sufficient
Sep 2.2" 3.7" 0" ✅ Rainfall sufficient
Oct 2.2" 3.4" 0" ✅ Rainfall sufficient
Nov 2.2" 4.4" 0" ✅ Rainfall sufficient
Dec 3.8" 0" ❄️ Dormant

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

Echinacea (Purple Coneflower) Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Echinacea (Purple Coneflower) needs ~1,400 GDD — county provides 4,147 GDD Excellent fit

Echinacea (Purple Coneflower) Planting Timeline — Drew County, AR

Echinacea (Purple Coneflower) Planting Calendar

Activity When Date Range
Start Indoors January 21 Jan 21 – Feb 4
Transplant Outdoors March 18 Mar 18 – Apr 1
Direct Sow March 18 Mar 18 – Apr 8
Bloom May 27 May 27 – Oct 14

Plant 0.3" deep · 18" apart · Rows 24" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

70–90 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

237 days in Drew County

Growing Tips for Echinacea (Purple Coneflower) in Drew County

Direct sow Echinacea (Purple Coneflower) outdoors after March 18 in Drew County when soil has warmed and frost danger has passed.

Common pests for Echinacea (Purple Coneflower) in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 8–10 weeks before last frost or direct-sow in fall for natural cold stratification. Seeds require 4–8 weeks of cold moist stratification (or fall sowing) for best germination. Transplant when night temps stay above 50°F. Full sun is essential for heavy bloom. Avoid over-fertilizing — lean soil produces more compact, floriferous plants. Deadhead for continuous bloom but leave some cones standing in fall for goldfinch seed harvest. Year 2+ plants bloom most heavily; first-year transplants may produce limited flowers. Divide congested clumps every 3–4 years in early spring.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Echinacea (Purple Coneflower) in Drew County, AR?

Drew County is in Zone 8b with an average last frost of March 18. Plan your Echinacea (Purple Coneflower) planting based on this frost date — see the calendar above for exact timing.

What planting zone is Drew County, AR?

Drew County, Arkansas is in USDA Hardiness Zone 8b. The average last spring frost is March 18 and first fall frost is November 10.

When should I plant Echinacea (Purple Coneflower) in Drew County, AR?

In Drew County, AR, plant Echinacea (Purple Coneflower) after the last frost (around March 18) and before the first frost (around November 10). Best results when soil holds above 50°F.

What growing zone is Drew County, AR for Echinacea (Purple Coneflower)?

Drew County sits in USDA Zone 8b. Echinacea (Purple Coneflower) grows reliably in zones 3a through 9b, so it's a good fit here.

Can Echinacea (Purple Coneflower) grow in Drew County's climate?

Yes — Echinacea (Purple Coneflower) grows well in Drew County's temperate climate. Drew County averages a 237-day frost-free season, with last frost around March 18 and first frost around November 10.

🌱

Your Drew County Garden Planner — Free

A 22-page printable planner built for Drew 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 Drew County, AR. Local conditions may vary. Last updated: June 2026.

Sources & credits

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