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When to Plant Fennel (herb) in Freestone County, TX

Herb fennel is grown for its aromatic leaves, stalks, and seeds rather than a bulb. It has a strong anise flavor and its flowers attract beneficial insects.

Freestone County, Texas is in USDA Zone 8b. The average last spring frost is March 11 and the first fall frost is November 13, giving you a growing season of approximately 247 days.

At an elevation of 398 feet, Freestone County receives approximately 71.4 inches of rainfall annually with predominantly clay soil. Summer highs average 93°F, providing good warmth for Fennel (herb) during the growing season. Clay soil retains moisture well for Fennel (herb), but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Fennel (herb) root diseases.

Freestone County, TX (Zone 8b) Long season
247 days
Last Spring Frost March 11
247 growing days
First Fall Frost November 13

Freestone County Soil Profile

Soil Type

Clay

Soil pH

6.9-7.9

Drainage

Well Drained

Monthly Watering Guide for Fennel (herb)

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

Month Fennel (herb) Needs Rainfall You Supplement Action
Jan 1.8" 0" ❄️ Dormant
Feb 2.7" 0" ❄️ Dormant
Mar 4.3" 4.8" 0" ✅ Rainfall sufficient
Apr 4.3" 7" 0" ✅ Rainfall sufficient
May 4.3" 12.2" 0" ✅ Rainfall sufficient
Jun 4.3" 10.3" 0" ✅ Rainfall sufficient
Jul 4.3" 8.2" 0" ✅ Rainfall sufficient
Aug 4.3" 9.1" 0" ✅ Rainfall sufficient
Sep 4.3" 6.1" 0" ✅ Rainfall sufficient
Oct 4.3" 5" 0" ✅ Rainfall sufficient
Nov 4.3" 2.3" 2" 💧 Light watering
Dec 1.9" 0" ❄️ Dormant

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

Fennel (herb) Planting Timeline — Freestone County, TX

Fennel (herb) Planting Calendar

Activity When Date Range
Start Indoors February 4 Feb 4 – Feb 18
Transplant Outdoors March 4 Mar 4 – Mar 18
Direct Sow February 25 Feb 25 – Mar 18
Harvest May 6 May 6 – Jul 15
Fall Sowing September 4 Sep 4 – Sep 18

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 5.5–7 · Your soil: N/A

🗺️ USDA Zone

Zone 8b

📆 Growing Season

247 days in Freestone County

Growing Tips for Freestone County

Direct sow in spring or fall. Unlike Florence fennel, herb fennel does not form a bulb. Harvest fronds as needed and seeds when they turn brown. Self-sows readily.

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Peppers
  • Green Beans

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Fennel (herb) in Freestone County, TX?

Freestone County is in Zone 8b with an average last frost of March 11. Plan your Fennel (herb) planting based on this frost date — see the calendar above for exact timing.

What planting zone is Freestone County, TX?

Freestone County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 11 and first fall frost is November 13.

🌱

Your Freestone County Garden Planner — Free

A 22-page printable planner built for Freestone 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 Freestone County, TX. Local conditions may vary. Last updated: June 2026.

Sources & credits

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