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When to Plant Feverfew in Matagorda County, TX

Matagorda County, Texas Zone 9b May

Top priorities for Matagorda County, Texas gardeners in May

Welcome to May in Zone 9b. These are the moves that will have the biggest impact on your growing season.

Avg. last frost February 19
Avg. first frost December 6
Soil temp (4") 76°F
Watering Low
Pest pressure High
Daylight 13.4 hrs
  1. Collect feverfew at their peak

    Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.

Get ahead of June
  • First harvests: feverfew

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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.

Matagorda County, Texas is in USDA Zone 9b. The average last spring frost is February 19 and the first fall frost is December 6, giving you a growing season of approximately 290 days.

At an elevation of 161 feet, Matagorda County receives approximately 57.1 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.

Matagorda County, TX (Zone 9b) Year-round
290 days
Last Spring Frost February 19
290 growing days
First Fall Frost December 6
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Matagorda County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.4-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (120 days to spare)
Transplant: Feb 14 🍅 Harvest: May 16 – Aug 1
Recommended (50%) ✓ Fits season (115 days to spare)
Transplant: Feb 26 🍅 Harvest: May 28 – Aug 13
Safe Start (90%) ✓ Fits season (106 days to spare)
Transplant: Mar 19 🍅 Harvest: Jun 18 – Sep 3

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 Matagorda County

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

Soil pH

Your soil pH (5.4–6.5) is more acidic than Feverfew prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is low (1.9%). 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
0.8″/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 1.4" 0" ❄️ Dormant
Feb 2.2" 1.9" 0.3" 💧 Light watering
Mar 2.2" 3.4" 0" ✅ Rainfall sufficient
Apr 2.2" 6.2" 0" ✅ Rainfall sufficient
May 2.2" 7.9" 0" ✅ Rainfall sufficient
Jun 2.2" 9.4" 0" ✅ Rainfall sufficient
Jul 2.2" 7.8" 0" ✅ Rainfall sufficient
Aug 2.2" 6.9" 0" ✅ Rainfall sufficient
Sep 2.2" 5.3" 0" ✅ Rainfall sufficient
Oct 2.2" 3.7" 0" ✅ Rainfall sufficient
Nov 2.2" 1.8" 0.4" 💧 Light watering
Dec 2.2" 1.4" 0.8" 💧 Light watering

Water needs are for active growing months only (Feb–Dec in Matagorda 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 6,183 GDD Excellent fit

Feverfew Planting Timeline — Matagorda County, TX

Feverfew Planting Calendar

Activity When Date Range
Transplant Outdoors February 26 Feb 26 – Mar 12
Harvest May 28 May 28 – Aug 13

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

Month-by-Month Timeline

MonthActivities
January
February Transplant Outdoors
March Transplant Outdoors
April
May Harvest
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 9b

📆 Growing Season

290 days in Matagorda County

Growing Tips for Feverfew in Matagorda County

Direct sow Feverfew outdoors after February 19 in Matagorda County when soil has warmed and frost danger has passed.

Sandy soil in Matagorda 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 Matagorda County, TX?

Matagorda County is in Zone 9b with an average last frost of February 19. Plan your Feverfew planting based on this frost date — see the calendar above for exact timing.

What planting zone is Matagorda County, TX?

Matagorda County, Texas is in USDA Hardiness Zone 9b. The average last spring frost is February 19 and first fall frost is December 6.

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Your Matagorda County Garden Planner — Free

A 24-page printable planner built for Matagorda County (Zone 9b). 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 Matagorda County, TX. 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.