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When to Plant Fennel (herb) in Baker County, FL

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.

Baker County, Florida is in USDA Zone 8b. The average last spring frost is March 1 and the first fall frost is November 27, giving you a growing season of approximately 271 days.

At an elevation of 177 feet, Baker County receives approximately 55.8 inches of rainfall annually with predominantly sand soil. Summer highs average 94ยฐF, providing good warmth for Fennel (herb) during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Fennel (herb) will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Fennel (herb) root diseases.

Baker County, FL (Zone 8b) Year-round
271 days
Last Spring Frost March 1
271 growing days
First Fall Frost November 27

Baker County Soil Profile

Soil Type

Sand

Soil pH

4.9-6.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (149 days to spare)
Start indoors: Jan 10 Transplant: Feb 7 🍅 Harvest: Apr 11 – Jun 20
Recommended (50%) ✓ Fits season (145 days to spare)
Start indoors: Jan 25 Transplant: Feb 22 🍅 Harvest: Apr 26 – Jul 5
Safe Start (90%) ✓ Fits season (143 days to spare)
Start indoors: Feb 19 Transplant: Mar 19 🍅 Harvest: May 21 – Jul 30

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 Baker County

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

Soil pH

Your soil pH (4.9โ€“6.1) overlaps with Fennel (herb)'s range (5.5โ€“7.0), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Fennel (herb).

Organic Matter

Organic matter is low (1.6%). 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 10 weeks before your first frost date for a fall harvest.

Succession Planting Fennel (herb)

5
successive plantings in your 271-day season

Sow every 6.9 weeks. Last sowing by Aug 29 to harvest before frost.

For a dedicated fall crop, sow by Sep 18.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 1,050 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€” 2.5" 0" โ„๏ธ Dormant
Feb โ€” 3" 0" โ„๏ธ Dormant
Mar 4.3" 3.8" 0.5" ๐Ÿ’ง Light watering
Apr 4.3" 2.5" 1.8" ๐Ÿ’ง Light watering
May 4.3" 3.9" 0.4" ๐Ÿ’ง Light watering
Jun 4.3" 7.8" 0" โœ… Rainfall sufficient
Jul 4.3" 9.7" 0" โœ… Rainfall sufficient
Aug 4.3" 7.4" 0" โœ… Rainfall sufficient
Sep 4.3" 6.5" 0" โœ… Rainfall sufficient
Oct 4.3" 4.1" 0.2" ๐Ÿ’ง Light watering
Nov 4.3" 2.2" 2.1" ๐Ÿ’ง Light watering
Dec โ€” 2.5" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Baker 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 ~1,538 GDD — county provides 5,555 GDD Excellent fit

Fennel (herb) Planting Timeline โ€” Baker County, FL

Fennel (herb) Planting Calendar

Activity When Date Range
Start Indoors January 25 Jan 25 โ€“ Feb 8
Transplant Outdoors February 22 Feb 22 โ€“ Mar 8
Direct Sow February 15 Feb 15 โ€“ Mar 8
Harvest April 26 Apr 26 โ€“ Jul 5
Fall Sowing September 18 Sep 18 โ€“ Oct 2

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1"/week ยท 1-2 times/week

๐Ÿ“… Days to Maturity

60โ€“90 days

๐Ÿงช Soil pH

Needs 5.5โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 8b

๐Ÿ“† Growing Season

271 days in Baker County

Growing Tips for Fennel (herb) in Baker County

Direct sow Fennel (herb) outdoors after March 01 in Baker County when soil has warmed and frost danger has passed.

Sandy soil in Baker County dries quickly โ€” 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 Baker County, FL?

Baker County is in Zone 8b with an average last frost of March 1. Plan your Fennel (herb) planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Baker County, FL?

Baker County, Florida is in USDA Hardiness Zone 8b. The average last spring frost is March 1 and first fall frost is November 27.

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 Baker County, FL. Local conditions may vary. Last updated: April 2026.