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When to Plant Anise in Williamson County, TX

Williamson County, Texas Zone 9a May

Your May gardening checklist

Here's what deserves your attention in Williamson County, Texas this month. Everything below is tailored to Zone 9a and timed around your local frost dates.

Avg. last frost March 5
Avg. first frost November 22
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. Start harvesting anise

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

A few tasks this May that'll pay off in June
  • First harvests: anise

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Anise is an annual herb grown for its licorice-flavored seeds and leaves. The seeds are used in baking, liqueurs, and traditional medicine worldwide.

Williamson County, Texas is in USDA Zone 9a. The average last spring frost is March 5 and the first fall frost is November 22, giving you a growing season of approximately 262 days.

At an elevation of 1,023 feet, Williamson County receives approximately 53.3 inches of rainfall annually with predominantly clay soil. Summer highs average 94°F, providing good warmth for Anise during the growing season. Clay soil retains moisture well for Anise, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Anise root diseases.

Williamson County, TX (Zone 9a) Long season
262 days
Last Spring Frost March 5
262 growing days
First Fall Frost November 22

Williamson County Soil Profile

Soil Type

Clay

Soil pH

7.1-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (103 days to spare)
Start indoors: Jan 24 Transplant: Feb 14 🍅 Harvest: May 16 – Aug 1
Recommended (50%) ✓ Fits season (101 days to spare)
Start indoors: Feb 5 Transplant: Feb 26 🍅 Harvest: May 28 – Aug 13
Safe Start (90%) ✓ Fits season (89 days to spare)
Start indoors: Mar 9 Transplant: Mar 30 🍅 Harvest: Jun 29 – Sep 14

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 Williamson County

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

Soil pH

Your soil pH (7.1–7.8) overlaps with Anise's range (6.0–7.5), though not a perfect match.

Soil Texture

Heavy clay soil (46% clay) in Williamson County compacts easily and drains slowly. Amend with compost and avoid working soil when wet.

Drainage

Drainage is adequate for Anise.

Organic Matter

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

How to Plant Anise

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
0.4″/week
Rainfall provides
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Anise

Anise needs approximately 0.4 inches of water per week (1.7" per month). Here's how your county's rainfall compares month by month.

Month Anise Needs Rainfall You Supplement Action
Jan 1.4" 0" ❄️ Dormant
Feb 2" 0" ❄️ Dormant
Mar 1.7" 3.4" 0" ✅ Rainfall sufficient
Apr 1.7" 6.5" 0" ✅ Rainfall sufficient
May 1.7" 7.7" 0" ✅ Rainfall sufficient
Jun 1.7" 7.6" 0" ✅ Rainfall sufficient
Jul 1.7" 6.6" 0" ✅ Rainfall sufficient
Aug 1.7" 6.1" 0" ✅ Rainfall sufficient
Sep 1.7" 5.4" 0" ✅ Rainfall sufficient
Oct 1.7" 3.7" 0" ✅ Rainfall sufficient
Nov 1.7" 1.7" 0" ✅ Rainfall sufficient
Dec 1.3" 0" ❄️ Dormant

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

Anise 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.

Anise needs ~2,152 GDD — county provides 5,371 GDD Excellent fit

Anise Planting Timeline — Williamson County, TX

Anise Planting Calendar

Activity When Date Range
Start Indoors February 5 Feb 5 – Feb 19
Transplant Outdoors February 26 Feb 26 – Mar 12
Direct Sow February 12 Feb 12 – Mar 5
Harvest May 28 May 28 – Aug 13
Fall Sowing September 27 Sep 27 – Oct 11

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.4"/week · Natural rainfall sufficient

📅 Days to Maturity

90–120 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 9a

📆 Growing Season

262 days in Williamson County

Growing Tips for Anise in Williamson County

Direct sow Anise outdoors after March 05 in Williamson County when soil has warmed and frost danger has passed.

With Williamson County's clay soil (46% clay), work in 3-4 inches of compost before planting Anise. Avoid tilling when soil is wet to prevent compaction.

Common pests for Anise 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 after last frost as anise has a taproot. Harvest seeds when they turn brown. Plants may need staking. The feathery leaves are also edible with a mild anise flavor.

Companion Planting

Good Companions

Avoid Planting Near

  • Carrots

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Anise in Williamson County, TX?

Williamson County is in Zone 9a with an average last frost of March 5. Plan your Anise planting based on this frost date — see the calendar above for exact timing.

What planting zone is Williamson County, TX?

Williamson County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is March 5 and first fall frost is November 22.

🌱

Your Williamson County Garden Planner — Free

A 24-page printable planner built for Williamson 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 Williamson 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.