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When to Plant Fennel (herb) in Elmore 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.

Elmore County, Alabama is in USDA Zone 7b. The average last spring frost is March 15 and the first fall frost is November 8, giving you a growing season of approximately 238 days.

At an elevation of 397 feet, Elmore County receives approximately 49.6 inches of rainfall annually with predominantly clay loam soil. Summer highs average 91ยฐF, 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.

Elmore County, AL (Zone 7b) Long season
238 days
Last Spring Frost March 15
238 growing days
First Fall Frost November 8

Elmore County Soil Profile

Soil Type

Clay Loam

Soil pH

5.5-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (114 days to spare)
Start indoors: Jan 31 Transplant: Feb 28 🍅 Harvest: May 2 – Jul 11
Recommended (50%) ✓ Fits season (112 days to spare)
Start indoors: Feb 8 Transplant: Mar 8 🍅 Harvest: May 10 – Jul 19
Safe Start (90%) ✓ Fits season (109 days to spare)
Start indoors: Mar 2 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.

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 264 gal / 100 sq ft
Fennel (herb) needs ~1,369 GDD — county provides 4,343 GDD Excellent fit

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

Fennel (herb) Planting Calendar

Activity When Date Range
Start Indoors February 8 Feb 8 โ€“ Feb 22
Transplant Outdoors March 8 Mar 8 โ€“ Mar 22
Direct Sow March 1 Mar 1 โ€“ Mar 22
Fall Sowing August 30 Aug 30 โ€“ Sep 13
Harvest May 10 May 10 โ€“ Jul 19

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

60โ€“90 days

Soil pH

5.5 โ€“ 7

USDA Zone

Zone 7b

Growing Season

238 days

Growing Tips for Elmore 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

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Frequently Asked Questions

When should I plant Fennel (herb) in Elmore County, AL?

Elmore County is in Zone 7b with an average last frost of March 15. Plan your Fennel (herb) planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Elmore County, AL?

Elmore County, Alabama is in USDA Hardiness Zone 7b. The average last spring frost is March 15 and first fall frost is November 8.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Elmore County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

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