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When to Plant Feverfew in Christian County, IL

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.

Christian County, Illinois is in USDA Zone 5b. The average last spring frost is April 13 and the first fall frost is October 19, giving you a growing season of approximately 189 days.

At an elevation of 1,086 feet, Christian County receives approximately 33.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83ยฐF, so choose short-season varieties of Feverfew to ensure they mature before fall.

Christian County, IL (Zone 5b) Moderate season
189 days
Last Spring Frost April 13
189 growing days
First Fall Frost October 19

Christian County Soil Profile

Soil Type

Silt Loam

Soil pH

5.8-7.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (17 days to spare)
Transplant: Apr 13 🍅 Harvest: Jul 13 – Sep 28
Recommended (50%) ✓ Fits season (14 days to spare)
Transplant: Apr 20 🍅 Harvest: Jul 20 – Oct 5
Safe Start (90%) ✓ Fits season (20 days to spare)
Transplant: Apr 28 🍅 Harvest: Jul 28 – Oct 13

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.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Feverfew needs ~1,286 GDD — county provides 2,315 GDD Excellent fit

Feverfew Planting Timeline โ€” Christian County, IL

Feverfew Planting Calendar

Activity When Date Range
Transplant Outdoors April 20 Apr 20 โ€“ May 4
Harvest July 20 Jul 20 โ€“ Oct 5

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Low โ€” drought tolerant

Days to Maturity

90โ€“120 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 5b

Growing Season

189 days

Growing Tips for Christian County

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

Level Up Your Garden

Frequently Asked Questions

When should I plant Feverfew in Christian County, IL?

Christian County is in Zone 5b with an average last frost of April 13. Plan your Feverfew planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Christian County, IL?

Christian County, Illinois is in USDA Hardiness Zone 5b. The average last spring frost is April 13 and first fall frost is October 19.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Christian County gardeners in Zone 5b organize planting dates, track what's growing, and never miss a planting window.

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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 Christian County, IL. Local conditions may vary. Last updated: April 2026.