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When to plant Feverfew in Wright County County,

Wright County County's short 159-day growing season means one Feverfew planting between May 8 and May 22. No fall crop in Zone 5a.

When to Plant Feverfew in Wright County, IA

Wright County, Iowa Zone 5a June

Your June gardening checklist

A quick June briefing for Wright County, Iowa gardeners — what's urgent, what's next, and what can wait.

Avg. last frost May 1
Avg. first frost October 7
Soil temp (4") 63°F
Watering Low
Pest pressure High
Daylight 15.1 hrs

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Feverfew is a bushy perennial herb with small daisy-like flowers and aromatic leaves. It has been used traditionally for headache relief and is a cheerful garden plant.

Wright County, Iowa is in USDA Zone 5a. The average last spring frost is May 1 and the first fall frost is October 7, giving you a growing season of approximately 159 days.

At an elevation of 1,359 feet, Wright County receives approximately 32.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84°F, so choose short-season varieties of Feverfew to ensure they mature before fall.

Wright County, IA (Zone 5a) Moderate season
159 days
Last Spring Frost May 1
159 growing days
First Fall Frost October 7
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Wright County Soil Profile

Soil Type

Silt Loam

Soil pH

5.8-6.9

Drainage

Well Drained

Feverfew Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: May 1 🍅 Harvest: Jul 31 – Oct 16
Recommended (50%) ✗ May not fit
Transplant: May 8 🍅 Harvest: Aug 7 – Oct 23
Safe Start (90%) ✗ May not fit
Transplant: May 21 🍅 Harvest: Aug 20 – Nov 5

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 Wright County

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

Soil pH

Your soil pH (5.8–6.9) overlaps with Feverfew's range (6.0–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Wright County is excellent for Feverfew — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is excellent (4.5%) — Feverfew will thrive.

How to Plant Feverfew

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

Feverfew Water Budget

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

Monthly Watering Guide for Feverfew

Feverfew 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 Feverfew Needs Rainfall You Supplement Action
Jan 1.3" 0" ❄️ Dormant
Feb 1.4" 0" ❄️ Dormant
Mar 2.2" 0" ❄️ Dormant
Apr 3.2" 0" ❄️ Dormant
May 2.2" 4.1" 0" ✅ Rainfall sufficient
Jun 2.2" 3.9" 0" ✅ Rainfall sufficient
Jul 2.2" 3.6" 0" ✅ Rainfall sufficient
Aug 2.2" 3.3" 0" ✅ Rainfall sufficient
Sep 2.2" 3.1" 0" ✅ Rainfall sufficient
Oct 2.2" 2.2" 0" ✅ Rainfall sufficient
Nov 2" 0" ❄️ Dormant
Dec 1.9" 0" ❄️ Dormant

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

Feverfew 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.

Feverfew needs ~1,365 GDD — county provides 2,067 GDD Excellent fit

Feverfew Planting Timeline — Wright County, IA

Feverfew Planting Calendar

Activity When Date Range
Transplant Outdoors May 8 May 8 – May 22
Harvest August 7 Aug 7 – Oct 23

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

90–120 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 5a

📆 Growing Season

159 days in Wright County

Growing Tips for Feverfew in Wright County

Direct sow Feverfew outdoors after May 01 in Wright County when soil has warmed and frost danger has passed.

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

General growing tips

Start seeds indoors or direct sow on the soil surface. Deadhead regularly to prevent aggressive self-seeding. Divide clumps every 2-3 years to maintain vigor.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Feverfew in Wright County, IA?

Wright County is in Zone 5a with an average last frost of May 1. Plan your Feverfew planting based on this frost date — see the calendar above for exact timing.

What planting zone is Wright County, IA?

Wright County, Iowa is in USDA Hardiness Zone 5a. The average last spring frost is May 1 and first fall frost is October 7.

When should I plant Feverfew in Wright County County, ?

In Wright County County, , plant Feverfew after the last frost (around May 1) and before the first frost (around October 7). Best results when soil holds above 50°F.

What growing zone is Wright County County, for Feverfew?

Wright County County sits in USDA Zone 5a. Feverfew grows reliably in zones 5a through 9b, so it's a good fit here.

Can Feverfew grow in Wright County County's climate?

Yes — Feverfew grows well in Wright County County's temperate climate. Wright County County averages a 159-day frost-free season, with last frost around May 1 and first frost around October 7.

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Your Wright County Garden Planner — Free

A 22-page printable planner built for Wright County (Zone 5a). 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 Wright County, IA. Local conditions may vary. Last updated: June 2026.

Sources & credits

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