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When to Plant Fennel in Perry County, AL

Perry County, Alabama Zone 8b May

May in the garden — Perry County, Alabama

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

Avg. last frost March 14
Avg. first frost November 13
Soil temp (4") 69°F
Watering Low
Pest pressure Moderate
Daylight 13.7 hrs
  1. Start fennel indoors

    You're about 27 weeks out from your last frost — the perfect window to get these germinating indoors.

  2. It's harvest week for fennel

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

Looking ahead to June
  • First harvests: fennel

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Florence fennel is grown for its swollen bulb-like stem base, which has a mild anise flavor. It is crisp raw in salads and sweet when roasted or braised.

Perry County, Alabama is in USDA Zone 8b. 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 61 feet, Perry County receives approximately 49.2 inches of rainfall annually with predominantly clay loam soil. Summer highs average 91°F, providing good warmth for Fennel during the growing season. Clay soil retains moisture well for Fennel, but amend with compost to improve drainage and prevent root rot.

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

Perry County Soil Profile

Soil Type

Clay Loam

Soil pH

5.4-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (125 days to spare)
Start indoors: Jan 17 Transplant: Mar 21 🍅 Harvest: May 23 – Jul 4
Recommended (50%) ✓ Fits season (125 days to spare)
Start indoors: Jan 24 Transplant: Mar 28 🍅 Harvest: May 30 – Jul 11
Safe Start (90%) ✓ Fits season (122 days to spare)
Start indoors: Feb 13 Transplant: Apr 17 🍅 Harvest: Jun 19 – Jul 31

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 Perry County

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

Soil pH

Your soil pH (5.4–6.7) overlaps with Fennel's range (5.5–7.0), though not a perfect match.

Soil Texture

The clay loam soil in Perry County is excellent for Fennel — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Fennel.

How to Plant Fennel

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

Succession Planting Fennel

4
successive plantings in your 244-day season

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

Plant Water Budget

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

Monthly Watering Guide for Fennel

Fennel needs approximately 0.6 inches of water per week (2.6" per month). Here's how your county's rainfall compares month by month.

Month Fennel Needs Rainfall You Supplement Action
Jan 3.8" 0" ❄️ Dormant
Feb 3.7" 0" ❄️ Dormant
Mar 2.6" 4.5" 0" ✅ Rainfall sufficient
Apr 2.6" 3.9" 0" ✅ Rainfall sufficient
May 2.6" 4.1" 0" ✅ Rainfall sufficient
Jun 2.6" 4.8" 0" ✅ Rainfall sufficient
Jul 2.6" 4.3" 0" ✅ Rainfall sufficient
Aug 2.6" 5.3" 0" ✅ Rainfall sufficient
Sep 2.6" 3.2" 0" ✅ Rainfall sufficient
Oct 2.6" 3.5" 0" ✅ Rainfall sufficient
Nov 2.6" 3.8" 0" ✅ Rainfall sufficient
Dec 4.4" 0" ❄️ Dormant

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

Fennel 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 needs ~1,369 GDD — county provides 4,453 GDD Excellent fit

Fennel Planting Timeline — Perry County, AL

Fennel Planting Calendar

Activity When Date Range
Start Indoors January 24 Jan 24 – Feb 7
Transplant Outdoors March 28 Mar 28 – Apr 11
Direct Sow March 21 Mar 21 – Apr 11
Harvest May 30 May 30 – Jul 11

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.6"/week · Natural rainfall sufficient

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 5.5–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 8b

📆 Growing Season

244 days in Perry County

Growing Tips for Fennel in Perry County

Direct sow Fennel outdoors after March 14 in Perry County when soil has warmed and frost danger has passed.

With Perry County's clay soil (28% clay), work in 3-4 inches of compost before planting Fennel. Avoid tilling when soil is wet to prevent compaction.

Common pests for Fennel 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 late summer for fall harvest to reduce bolting. Hill soil around bulbs as they enlarge. Harvest when bulbs are tennis-ball sized before they elongate.

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Peppers
  • Beans

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Fennel in Perry County, AL?

Perry County is in Zone 8b with an average last frost of March 14. Plan your Fennel planting based on this frost date — see the calendar above for exact timing.

What planting zone is Perry County, AL?

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

🌱

Your Perry County Garden Planner — Free

A 24-page printable planner built for Perry 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.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Perry County, AL. 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.