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When to plant Echinacea (Purple Coneflower) in Monroe County County,

In Monroe County County, plant Echinacea (Purple Coneflower) in spring between April 17 and May 8, once soil temps hold above 50°F. Monroe County County's last frost averages April 10, so most warm-season crops establish quickly once soil holds above 60°F. For a fall crop, sow between and — roughly 90 days before the first frost on October 28.

When to Plant Echinacea (Purple Coneflower) in Monroe County, KY

Monroe County, Kentucky Zone 7a June

June to-do list for Monroe County, Kentucky

We've pulled the most time-sensitive tasks for Monroe County, Kentucky this June and put them front and centre. Tackle them in order.

Avg. last frost April 10
Avg. first frost October 28
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 14.5 hrs
  1. Begin indoor sowing: echinacea (purple coneflower)

    You're about 19 weeks out from your last frost — the perfect window to get these germinating indoors.

July will be here before you know it — start on
  • 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.

Monroe County, Kentucky is in USDA Zone 7a. The average last spring frost is April 10 and the first fall frost is October 28, giving you a growing season of approximately 201 days.

At an elevation of 1,648 feet, Monroe County receives approximately 54.6 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
Monroe County, KY (Zone 7a) Long season
201 days
Last Spring Frost April 10
201 growing days
First Fall Frost October 28
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Monroe County Soil Profile

Soil Type

Silt Loam

Soil pH

5.5-7.1

Drainage

Well Drained

Echinacea (Purple Coneflower) Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Feb 2 Transplant: Apr 13 🌸 Bloom: Jun 29 – Oct 26
Recommended (50%) ✗ May not fit
Start indoors: Feb 6 Transplant: Apr 17 🌸 Bloom: Jul 3 – Oct 30
Safe Start (90%) ✓ Fits season (0 days to spare)
Start indoors: Feb 17 Transplant: Apr 28 🌸 Bloom: Jul 14 – Nov 10

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 Monroe County

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

Soil pH

Your soil pH (5.5–7.1) overlaps with Echinacea (Purple Coneflower)'s range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.4%). 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 201-day season

Sow every 8 weeks. Last sowing by Jul 30 to harvest before frost.

Echinacea (Purple Coneflower) Water Budget

Plant needs
0.5″/week
Rainfall provides
1.1″/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 4.4" 0" ❄️ Dormant
Feb 4.1" 0" ❄️ Dormant
Mar 4.7" 0" ❄️ Dormant
Apr 2.2" 4.2" 0" ✅ Rainfall sufficient
May 2.2" 3.7" 0" ✅ Rainfall sufficient
Jun 2.2" 4.8" 0" ✅ Rainfall sufficient
Jul 2.2" 6.1" 0" ✅ Rainfall sufficient
Aug 2.2" 5.9" 0" ✅ Rainfall sufficient
Sep 2.2" 4.2" 0" ✅ Rainfall sufficient
Oct 2.2" 3.8" 0" ✅ Rainfall sufficient
Nov 3.8" 0" ❄️ Dormant
Dec 4.7" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Monroe 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 3,517 GDD Excellent fit

Echinacea (Purple Coneflower) Planting Timeline — Monroe County, KY

Echinacea (Purple Coneflower) Planting Calendar

Activity When Date Range
Start Indoors February 6 Feb 6 – Feb 20
Transplant Outdoors April 17 Apr 17 – May 1
Direct Sow April 17 Apr 17 – May 8
Bloom July 3 Jul 3 – Oct 30

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March
April Transplant Outdoors Direct Sow
May Transplant Outdoors Direct Sow
June
July Bloom
August Bloom
September Bloom
October Bloom
November
December
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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 7a

📆 Growing Season

201 days in Monroe County

Growing Tips for Echinacea (Purple Coneflower) in Monroe County

Direct sow Echinacea (Purple Coneflower) outdoors after April 10 in Monroe 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 Monroe County, KY?

Monroe County is in Zone 7a with an average last frost of April 10. Plan your Echinacea (Purple Coneflower) planting based on this frost date — see the calendar above for exact timing.

What planting zone is Monroe County, KY?

Monroe County, Kentucky is in USDA Hardiness Zone 7a. The average last spring frost is April 10 and first fall frost is October 28.

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

In Monroe County, , plant Echinacea (Purple Coneflower) after the last frost (around April 10) and before the first frost (around October 28). Best results when soil holds above 50°F.

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

Monroe County sits in USDA Zone 7a. Echinacea (Purple Coneflower) grows reliably in zones 3a through 9b, so it's a good fit here.

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

Yes — Echinacea (Purple Coneflower) grows well in Monroe County's temperate climate. Monroe County averages a 201-day frost-free season, with last frost around April 10 and first frost around October 28.

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A 22-page printable planner built for Monroe County (Zone 7a). 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 Monroe County, KY. Local conditions may vary. Last updated: June 2026.

Sources & credits

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