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When to Plant Feverfew in Washington County, MS

Washington County, Mississippi Zone 8b April

Your April gardening checklist

If you only do a handful of things in the garden this April, make it these. They're sequenced around your zone's frost timing.

Avg. last frost March 6
Avg. first frost November 15
Soil temp (4") 63°F
Watering Low
Pest pressure High
Daylight 12.8 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.

Washington County, Mississippi is in USDA Zone 8b. The average last spring frost is March 6 and the first fall frost is November 15, giving you a growing season of approximately 254 days.

At an elevation of 258 feet, Washington County receives approximately 55.3 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90°F, providing good warmth for Feverfew during the growing season. Clay soil retains moisture well for Feverfew, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Feverfew root diseases.

Washington County, MS (Zone 8b) Long season
254 days
Last Spring Frost March 6
254 growing days
First Fall Frost November 15
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Washington County Soil Profile

Soil Type

Clay Loam

Soil pH

5.4-6.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (72 days to spare)
Transplant: Mar 9 🍅 Harvest: Jun 8 – Aug 24
Recommended (50%) ✓ Fits season (79 days to spare)
Transplant: Mar 13 🍅 Harvest: Jun 12 – Aug 28
Safe Start (90%) ✓ Fits season (75 days to spare)
Transplant: Mar 31 🍅 Harvest: Jun 30 – Sep 15

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 Washington County

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

Soil pH

Your soil pH (5.4–6.4) is more acidic than Feverfew prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.6%). Annual compost additions will help Feverfew.

How to Plant Feverfew

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

Plant 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 4.1" 0" ❄️ Dormant
Feb 4.3" 0" ❄️ Dormant
Mar 2.2" 5.5" 0" ✅ Rainfall sufficient
Apr 2.2" 4.1" 0" ✅ Rainfall sufficient
May 2.2" 4.6" 0" ✅ Rainfall sufficient
Jun 2.2" 5.2" 0" ✅ Rainfall sufficient
Jul 2.2" 6.1" 0" ✅ Rainfall sufficient
Aug 2.2" 5.6" 0" ✅ Rainfall sufficient
Sep 2.2" 4.5" 0" ✅ Rainfall sufficient
Oct 2.2" 3.6" 0" ✅ Rainfall sufficient
Nov 2.2" 3.9" 0" ✅ Rainfall sufficient
Dec 3.7" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Washington 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 ~1,838 GDD — county provides 4,445 GDD Excellent fit

Feverfew Planting Timeline — Washington County, MS

Feverfew Planting Calendar

Activity When Date Range
Transplant Outdoors March 13 Mar 13 – Mar 27
Harvest June 12 Jun 12 – Aug 28

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

Month-by-Month Timeline

MonthActivities
January
February
March Transplant Outdoors
April
May
June Harvest
July Harvest
August Harvest
September
October
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: too_acidic

🗺️ USDA Zone

Zone 8b

📆 Growing Season

254 days in Washington County

Growing Tips for Feverfew in Washington County

Direct sow Feverfew outdoors after March 06 in Washington County when soil has warmed and frost danger has passed.

With Washington County's clay soil (30% clay), work in 3-4 inches of compost before planting Feverfew. Avoid tilling when soil is wet to prevent compaction.

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 Washington County, MS?

Washington County is in Zone 8b with an average last frost of March 6. Plan your Feverfew planting based on this frost date — see the calendar above for exact timing.

What planting zone is Washington County, MS?

Washington County, Mississippi is in USDA Hardiness Zone 8b. The average last spring frost is March 6 and first fall frost is November 15.

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Your Washington County Garden Planner — Free

A 24-page printable planner built for Washington 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 Washington County, MS. Local conditions may vary. Last updated: April 2026.

Sources & credits

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