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When to Plant Caraway in Waller County, TX

Waller County, Texas Zone 9a May

What to do in May

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Waller County, Texas.

Avg. last frost February 19
Avg. first frost December 4
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 13.5 hrs

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Caraway is a biennial herb grown for its distinctive crescent-shaped seeds used in rye bread, sauerkraut, and European cuisine. The leaves and roots are also edible.

Waller County, Texas is in USDA Zone 9a. The average last spring frost is February 19 and the first fall frost is December 4, giving you a growing season of approximately 288 days.

At an elevation of 376 feet, Waller County receives approximately 64.1 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 95°F, so Caraway may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Caraway will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Caraway root diseases.

Waller County, TX (Zone 9a) Year-round
288 days
Last Spring Frost February 19
288 growing days
First Fall Frost December 4

Waller County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.6-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Start indoors: Jan 14 Transplant: Feb 4
Recommended (50%) ✓ Fits season
Start indoors: Jan 22 Transplant: Feb 12
Safe Start (90%) ✓ Fits season
Start indoors: Feb 9 Transplant: Mar 2

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 Waller County

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

Soil pH

Your soil pH (5.6–6.2) is more acidic than Caraway prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is moderate (2.0%). Annual compost additions will help Caraway.

How to Plant Caraway

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

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 176 gal / 100 sq ft

Monthly Watering Guide for Caraway

Caraway needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Caraway Needs Rainfall You Supplement Action
Jan 1.7" 0" ❄️ Dormant
Feb 4.3" 2.4" 1.9" 💧 Light watering
Mar 4.3" 4.6" 0" ✅ Rainfall sufficient
Apr 4.3" 7.3" 0" ✅ Rainfall sufficient
May 4.3" 8.9" 0" ✅ Rainfall sufficient
Jun 4.3" 9.1" 0" ✅ Rainfall sufficient
Jul 4.3" 7.9" 0" ✅ Rainfall sufficient
Aug 4.3" 7" 0" ✅ Rainfall sufficient
Sep 4.3" 6.9" 0" ✅ Rainfall sufficient
Oct 4.3" 4.3" 0" ✅ Rainfall sufficient
Nov 4.3" 2.2" 2.1" 💧 Light watering
Dec 4.3" 1.7" 2.6" 🚿 Regular watering

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

Caraway 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.

Caraway needs ~8,659 GDD — county provides 6,141 GDD May not mature

Caraway Planting Timeline — Waller County, TX

Caraway Planting Calendar

Activity When Date Range
Start Indoors January 22 Jan 22 – Feb 5
Transplant Outdoors February 12 Feb 12 – Feb 26
Direct Sow January 29 Jan 29 – Feb 19
Fall Sowing October 9 Oct 9 – Oct 23

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

Month-by-Month Timeline

MonthActivities
January Start Indoors Direct Sow
February Start Indoors Transplant Outdoors Direct Sow
March
April
May
June
July
August
September
October Fall Sowing
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

365–450 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

288 days in Waller County

Growing Tips for Caraway in Waller County

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

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

Your 289.0-day growing season in Waller County is tight for Caraway (365.0-450.0 days to maturity). Start indoors and choose early-maturing varieties.

Common pests for Caraway in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow in spring or fall. Caraway produces seeds in its second year. Harvest seed heads when they turn brown. The young leaves can be used like parsley.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Caraway in Waller County, TX?

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

What planting zone is Waller County, TX?

Waller County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 19 and first fall frost is December 4.

🌱

Your Waller County Garden Planner — Free

A 24-page printable planner built for Waller 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.

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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 Waller 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.