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When to Plant Fennel (herb) in Live Oak County, TX

Live Oak County, Texas Zone 9b May

Your May game plan for Live Oak County, Texas

Your Live Oak County, Texas garden is entering a new phase. Here's what's on the schedule for May and why each task matters now.

Avg. last frost February 13
Avg. first frost December 7
Soil temp (4") 68°F
Watering Low
Pest pressure High
Daylight 13.4 hrs
  1. Basket week: fennel (herb)

    Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.

Looking ahead to June
  • First harvests: fennel (herb)

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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.

Live Oak County, Texas is in USDA Zone 9b. The average last spring frost is February 13 and the first fall frost is December 7, giving you a growing season of approximately 297 days.

At an elevation of 3,092 feet, Live Oak County receives approximately 63.3 inches of rainfall annually with predominantly loam soil. Summer highs average 104°F, so Fennel (herb) may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Fennel (herb) root diseases.

Live Oak County, TX (Zone 9b) Year-round
297 days
Last Spring Frost February 13
297 growing days
First Fall Frost December 7
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Live Oak County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (189 days to spare)
Start indoors: Dec 23 Transplant: Jan 13 🍅 Harvest: Mar 17 – May 26
Recommended (50%) ✓ Fits season (171 days to spare)
Start indoors: Jan 16 Transplant: Feb 6 🍅 Harvest: Apr 10 – Jun 19
Safe Start (90%) ✓ Fits season (164 days to spare)
Start indoors: Feb 6 Transplant: Feb 27 🍅 Harvest: May 1 – Jul 10

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 Live Oak County

How your county's soil matches Fennel (herb)'s growing requirements.

Soil pH

Your soil pH (6.8–7.8) is more alkaline than Fennel (herb) prefers (5.5–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in Live Oak County is excellent for Fennel (herb) — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.3%). Annual compost additions will help Fennel (herb).

How to Plant Fennel (herb)

1"
Planting Depth
15"
Between Plants
24"
Between Rows

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

Succession Planting Fennel (herb)

5
successive plantings in your 297-day season

Sow every 6.9 weeks. Last sowing by Sep 08 to harvest before frost.

For a dedicated fall crop, sow by Oct 12.

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 343 gal / 100 sq ft
Drought risk

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

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 4.3" 2.3" 2" 💧 Light watering
Mar 4.3" 4.4" 0" ✅ Rainfall sufficient
Apr 4.3" 7.4" 0" ✅ Rainfall sufficient
May 4.3" 7.9" 0" ✅ Rainfall sufficient
Jun 4.3" 9.9" 0" ✅ Rainfall sufficient
Jul 4.3" 8.9" 0" ✅ Rainfall sufficient
Aug 4.3" 7.4" 0" ✅ Rainfall sufficient
Sep 4.3" 6.2" 0" ✅ Rainfall sufficient
Oct 4.3" 3.6" 0.7" 💧 Light watering
Nov 4.3" 1.8" 2.5" 🚿 Regular watering
Dec 4.3" 1.7" 2.6" 🚿 Regular watering

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

Fennel (herb) 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.

Fennel (herb) needs ~2,100 GDD — county provides 8,344 GDD Excellent fit

Fennel (herb) Planting Timeline — Live Oak County, TX

Fennel (herb) Planting Calendar

Activity When Date Range
Start Indoors January 16 Jan 16 – Jan 30
Transplant Outdoors February 6 Feb 6 – Feb 20
Direct Sow January 23 Jan 23 – Feb 13
Harvest April 10 Apr 10 – Jun 19
Fall Sowing October 12 Oct 12 – Oct 26

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 5.5–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 9b

📆 Growing Season

297 days in Live Oak County

Growing Tips for Fennel (herb) in Live Oak County

Direct sow Fennel (herb) outdoors after February 13 in Live Oak County when soil has warmed and frost danger has passed.

With summer highs reaching 104°F in Live Oak County, provide afternoon shade for Fennel (herb) and water deeply in the morning.

Common pests for Fennel (herb) 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. 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 Live Oak County, TX?

Live Oak County is in Zone 9b with an average last frost of February 13. Plan your Fennel (herb) planting based on this frost date — see the calendar above for exact timing.

What planting zone is Live Oak County, TX?

Live Oak County, Texas is in USDA Hardiness Zone 9b. The average last spring frost is February 13 and first fall frost is December 7.

🌱

Your Live Oak County Garden Planner — Free

A 24-page printable planner built for Live Oak 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 Live Oak 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.