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When to Plant Fennel (herb) in Wilcox County, AL

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.

Wilcox County, Alabama is in USDA Zone 8a. The average last spring frost is March 14 and the first fall frost is November 13, giving you a growing season of approximately 244 days.

At an elevation of 51 feet, Wilcox County receives approximately 61 inches of rainfall annually with predominantly clay loam soil. Summer highs average 90ยฐF, 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.

Wilcox County, AL (Zone 8a) Long season
244 days
Last Spring Frost March 14
244 growing days
First Fall Frost November 13

Wilcox County Soil Profile

Soil Type

Clay Loam

Soil pH

5.3-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (117 days to spare)
Start indoors: Jan 31 Transplant: Feb 28 🍅 Harvest: May 2 – Jul 11
Recommended (50%) ✓ Fits season (118 days to spare)
Start indoors: Feb 7 Transplant: Mar 7 🍅 Harvest: May 9 – Jul 18
Safe Start (90%) ✓ Fits season (112 days to spare)
Start indoors: Feb 26 Transplant: Mar 26 🍅 Harvest: May 28 – Aug 6

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 Wilcox County

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

Soil pH

Your soil pH (5.3โ€“6.5) overlaps with Fennel (herb)'s range (5.5โ€“7.0), though not a perfect match.

Soil Texture

The clay loam soil in Wilcox County is excellent for Fennel (herb) โ€” good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Fennel (herb).

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 10 weeks before your first frost date for a fall harvest.

Succession Planting Fennel (herb)

4
successive plantings in your 244-day season

Sow every 6.9 weeks. Last sowing by Aug 15 to harvest before frost.

For a dedicated fall crop, sow by Sep 04.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

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 โ€” 4.5" 0" โ„๏ธ Dormant
Feb โ€” 5.6" 0" โ„๏ธ Dormant
Mar 4.3" 5.5" 0" โœ… Rainfall sufficient
Apr 4.3" 5.3" 0" โœ… Rainfall sufficient
May 4.3" 5.4" 0" โœ… Rainfall sufficient
Jun 4.3" 5.7" 0" โœ… Rainfall sufficient
Jul 4.3" 5.4" 0" โœ… Rainfall sufficient
Aug 4.3" 6.1" 0" โœ… Rainfall sufficient
Sep 4.3" 4.8" 0" โœ… Rainfall sufficient
Oct 4.3" 4.1" 0.2" ๐Ÿ’ง Light watering
Nov 4.3" 4.2" 0.1" ๐Ÿ’ง Light watering
Dec โ€” 4.5" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Wilcox County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 ~1,312 GDD — county provides 4,270 GDD Excellent fit

Fennel (herb) Planting Timeline โ€” Wilcox County, AL

Fennel (herb) Planting Calendar

Activity When Date Range
Start Indoors February 7 Feb 7 โ€“ Feb 21
Transplant Outdoors March 7 Mar 7 โ€“ Mar 21
Direct Sow February 28 Feb 28 โ€“ Mar 21
Harvest May 9 May 9 โ€“ Jul 18
Fall Sowing September 4 Sep 4 โ€“ Sep 18

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

60โ€“90 days

๐Ÿงช Soil pH

Needs 5.5โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

244 days in Wilcox County

Growing Tips for Fennel (herb) in Wilcox County

Direct sow Fennel (herb) outdoors after March 14 in Wilcox County when soil has warmed and frost danger has passed.

With Wilcox County's clay soil (34% clay), work in 3-4 inches of compost before planting Fennel (herb). Avoid tilling when soil is wet to prevent compaction.

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 Wilcox County, AL?

Wilcox County is in Zone 8a with an average last frost of March 14. Plan your Fennel (herb) planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Wilcox County, AL?

Wilcox County, Alabama is in USDA Hardiness Zone 8a. The average last spring frost is March 14 and first fall frost is November 13.

๐ŸŒฑ

Plan Your Garden with Confidence

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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 Wilcox County, AL. Local conditions may vary. Last updated: April 2026.