Blog

When to Plant Feverfew in Beaufort County, SC

Beaufort County, South Carolina Zone 9a May

May in Beaufort County, South Carolina — your action list

Your garden in Beaufort County, South Carolina is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost March 13
Avg. first frost November 15
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
To set up a strong June, finish these tasks
  • First harvests: feverfew

Instant PDF download. No spam, unsubscribe any time.

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.

Beaufort County, South Carolina is in USDA Zone 9a. The average last spring frost is March 13 and the first fall frost is November 15, giving you a growing season of approximately 247 days.

At an elevation of 288 feet, Beaufort County receives approximately 56.5 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 95°F, so Feverfew may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Feverfew will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Feverfew root diseases.

Beaufort County, SC (Zone 9a) Long season
247 days
Last Spring Frost March 13
247 growing days
First Fall Frost November 15

Beaufort County Soil Profile

Soil Type

Sandy Loam

Soil pH

4.9-6.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (72 days to spare)
Transplant: Mar 11 🍅 Harvest: Jun 10 – Aug 26
Recommended (50%) ✓ Fits season (72 days to spare)
Transplant: Mar 20 🍅 Harvest: Jun 19 – Sep 4
Safe Start (90%) ✓ Fits season (65 days to spare)
Transplant: Apr 16 🍅 Harvest: Jul 16 – Oct 1

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 Beaufort County

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

Soil pH

Your soil pH (4.9–6.1) is more acidic than Feverfew prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Beaufort County warms quickly in spring but drains fast. Feverfew will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Feverfew prefers dry conditions but your soil drains poorly. Use raised beds or mounded rows to prevent root rot.

Organic Matter

Organic matter is low (1.8%). Add 2-3 inches of compost before planting 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
1.0″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 4.6" 0" ❄️ Dormant
Feb 4.8" 0" ❄️ Dormant
Mar 2.2" 5" 0" ✅ Rainfall sufficient
Apr 2.2" 4.6" 0" ✅ Rainfall sufficient
May 2.2" 5" 0" ✅ Rainfall sufficient
Jun 2.2" 4.9" 0" ✅ Rainfall sufficient
Jul 2.2" 5.3" 0" ✅ Rainfall sufficient
Aug 2.2" 5.4" 0" ✅ Rainfall sufficient
Sep 2.2" 4.8" 0" ✅ Rainfall sufficient
Oct 2.2" 4.1" 0" ✅ Rainfall sufficient
Nov 2.2" 4" 0" ✅ Rainfall sufficient
Dec 4" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Beaufort 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 ~2,231 GDD — county provides 5,248 GDD Excellent fit

Feverfew Planting Timeline — Beaufort County, SC

Feverfew Planting Calendar

Activity When Date Range
Transplant Outdoors March 20 Mar 20 – Apr 3
Harvest June 19 Jun 19 – Sep 4

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

Month-by-Month Timeline

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

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 9a

📆 Growing Season

247 days in Beaufort County

Growing Tips for Feverfew in Beaufort County

Direct sow Feverfew outdoors after March 13 in Beaufort County when soil has warmed and frost danger has passed.

Sandy soil in Beaufort County dries quickly — mulch Feverfew with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

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 Beaufort County, SC?

Beaufort County is in Zone 9a with an average last frost of March 13. Plan your Feverfew planting based on this frost date — see the calendar above for exact timing.

What planting zone is Beaufort County, SC?

Beaufort County, South Carolina is in USDA Hardiness Zone 9a. The average last spring frost is March 13 and first fall frost is November 15.

🌱

Your Beaufort County Garden Planner — Free

A 24-page printable planner built for Beaufort County (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Beaufort County, SC. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.