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When to Plant Fennel (herb) in Beauregard Parish, LA

Beauregard Parish, Louisiana Zone 9a May

Your May gardening checklist

Your garden in Beauregard Parish, Louisiana is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost March 7
Avg. first frost November 16
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. Harvest fennel (herb) as they ripen

    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: 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.

Beauregard Parish, Louisiana is in USDA Zone 9a. The average last spring frost is March 7 and the first fall frost is November 16, giving you a growing season of approximately 254 days.

At an elevation of 206 feet, Beauregard Parish receives approximately 49.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 91°F, providing good warmth for Fennel (herb) during the growing season. Sandy soil warms quickly in spring — great for early planting — but Fennel (herb) will need more frequent watering and organic matter to retain nutrients.

Beauregard Parish, LA (Zone 9a) Long season
254 days
Last Spring Frost March 7
254 growing days
First Fall Frost November 16
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Beauregard Parish Soil Profile

Soil Type

Sandy Loam

Soil pH

4.8-6.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (129 days to spare)
Start indoors: Jan 30 Transplant: Feb 20 🍅 Harvest: Apr 24 – Jul 3
Recommended (50%) ✓ Fits season (128 days to spare)
Start indoors: Feb 7 Transplant: Feb 28 🍅 Harvest: May 2 – Jul 11
Safe Start (90%) ✓ Fits season (123 days to spare)
Start indoors: Mar 9 Transplant: Mar 30 🍅 Harvest: Jun 1 – Aug 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 Beauregard Parish

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

Soil pH

Your soil pH (4.8–6.2) overlaps with Fennel (herb)'s range (5.5–7.0), though not a perfect match.

Soil Texture

Sandy soil in Beauregard Parish warms quickly in spring but drains fast. Fennel (herb) will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is low (1.7%). Add 2-3 inches of compost before planting 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 254-day season

Sow every 6.9 weeks. Last sowing by Aug 18 to harvest before frost.

For a dedicated fall crop, sow by Sep 21.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 501 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 3.8" 0" ❄️ Dormant
Feb 4.5" 0" ❄️ Dormant
Mar 4.3" 4.2" 0.1" 💧 Light watering
Apr 4.3" 3.4" 0.9" 💧 Light watering
May 4.3" 4.2" 0.1" 💧 Light watering
Jun 4.3" 4" 0.3" 💧 Light watering
Jul 4.3" 5.4" 0" ✅ Rainfall sufficient
Aug 4.3" 4.8" 0" ✅ Rainfall sufficient
Sep 4.3" 4.4" 0" ✅ Rainfall sufficient
Oct 4.3" 3.3" 1" 💧 Light watering
Nov 4.3" 3.9" 0.4" 💧 Light watering
Dec 3.5" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Beauregard Parish). 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 ~1,369 GDD — county provides 4,635 GDD Excellent fit

Fennel (herb) Planting Timeline — Beauregard Parish, LA

Fennel (herb) Planting Calendar

Activity When Date Range
Start Indoors February 7 Feb 7 – Feb 21
Transplant Outdoors February 28 Feb 28 – Mar 14
Direct Sow February 14 Feb 14 – Mar 7
Harvest May 2 May 2 – Jul 11
Fall Sowing September 21 Sep 21 – Oct 5

Plant 1" deep · 15" apart · Rows 24" 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
September Fall Sowing
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: acceptable

🗺️ USDA Zone

Zone 9a

📆 Growing Season

254 days in Beauregard Parish

Growing Tips for Fennel (herb) in Beauregard Parish

Direct sow Fennel (herb) outdoors after March 07 in Beauregard Parish when soil has warmed and frost danger has passed.

Sandy soil in Beauregard Parish dries quickly — mulch Fennel (herb) with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

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 Beauregard Parish, LA?

Beauregard Parish is in Zone 9a with an average last frost of March 7. Plan your Fennel (herb) planting based on this frost date — see the calendar above for exact timing.

What planting zone is Beauregard Parish, LA?

Beauregard Parish, Louisiana is in USDA Hardiness Zone 9a. The average last spring frost is March 7 and first fall frost is November 16.

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Your Beauregard Parish Garden Planner — Free

A 24-page printable planner built for Beauregard Parish (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 Beauregard Parish, LA. 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.