Blog

When to Plant Echinacea in Hooker County, NE

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

Hooker County, Nebraska is in USDA Zone 4b. The average last spring frost is May 13 and the first fall frost is October 4, giving you a growing season of approximately 144 days.

At an elevation of 737 feet, Hooker County receives approximately 21.1 inches of rainfall annually with predominantly loam soil. Summer highs average 81ยฐF, so choose short-season varieties of Echinacea to ensure they mature before fall.

Hooker County, NE (Zone 4b) Short season
144 days
Last Spring Frost May 13
144 growing days
First Fall Frost October 4

Hooker County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: May 15 🍅 Harvest: Sep 18 – Oct 9
Recommended (50%) ✗ May not fit
Transplant: May 20 🍅 Harvest: Sep 23 – Oct 14
Safe Start (90%) ✗ May not fit
Transplant: May 29 🍅 Harvest: Oct 2 – Oct 23

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 Hooker County

How your county's soil matches Echinacea's growing requirements.

Soil pH

Your soil pH (6.2โ€“7.1) overlaps with Echinacea's range (6.0โ€“7.0), though not a perfect match.

Soil Texture

The loam soil in Hooker County is excellent for Echinacea โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.6%). Annual compost additions will help Echinacea.

How to Plant Echinacea

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Plant Water Budget

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

Water stress score is 8/10 โ€” consider drought-tolerant varieties and mulching

Monthly Watering Guide for Echinacea

Echinacea 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 Needs Rainfall You Supplement Action
Jan โ€” 1.3" 0" โ„๏ธ Dormant
Feb โ€” 1.4" 0" โ„๏ธ Dormant
Mar โ€” 2" 0" โ„๏ธ Dormant
Apr โ€” 2.4" 0" โ„๏ธ Dormant
May 2.2" 2.6" 0" โœ… Rainfall sufficient
Jun 2.2" 1.7" 0.5" ๐Ÿ’ง Light watering
Jul 2.2" 1.8" 0.4" ๐Ÿ’ง Light watering
Aug 2.2" 2" 0.2" ๐Ÿ’ง Light watering
Sep 2.2" 1.5" 0.7" ๐Ÿ’ง Light watering
Oct 2.2" 1.7" 0.5" ๐Ÿ’ง Light watering
Nov โ€” 1.7" 0" โ„๏ธ Dormant
Dec โ€” 1.1" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Mayโ€“Oct in Hooker County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Echinacea 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" โ€” every day above 50ยฐF 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 needs ~1,612 GDD — county provides 1,548 GDD Tight fit

Echinacea Planting Timeline โ€” Hooker County, NE

Echinacea Planting Calendar

Activity When Date Range
Transplant Outdoors May 20 May 20 โ€“ Jun 3
Harvest September 23 Sep 23 โ€“ Oct 14

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 Transplant Outdoors
July โ€”
August โ€”
September Harvest
October Harvest
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.5"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

120โ€“180 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 4b

๐Ÿ“† Growing Season

144 days in Hooker County

Growing Tips for Echinacea in Hooker County

Direct sow Echinacea outdoors after May 13 in Hooker County when soil has warmed and frost danger has passed.

Your 144.0-day growing season in Hooker County is tight for Echinacea (120.0-180.0 days to maturity). Start indoors and choose early-maturing varieties.

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

Hooker County receives only 21" of rain annually. Echinacea needs consistent moisture โ€” install drip irrigation or water deeply 2-3 times per week.

General growing tips

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 Hooker County, NE?

Hooker County is in Zone 4b with an average last frost of May 13. Plan your Echinacea planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Hooker County, NE?

Hooker County, Nebraska is in USDA Hardiness Zone 4b. The average last spring frost is May 13 and first fall frost is October 4.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Hooker County gardeners in Zone 4b 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 Hooker County, NE. Local conditions may vary. Last updated: April 2026.