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When to plant Fennel in Charlotte County, FL

Fennel planted in Charlotte County between January 1 and January 22 matures in 60–90 days — well before the December 31 first frost.

When to Plant Fennel in Charlotte County, FL

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.

Charlotte County, Florida is in USDA Zone 10a. The average last spring frost is January 1 and the first fall frost is December 31, giving you a growing season of approximately 364 days.

At an elevation of 487 feet, Charlotte County receives approximately 59.2 inches of rainfall annually with predominantly sand soil. Summer highs average 86°F, providing good warmth for Fennel during the growing season. Sandy soil warms quickly in spring — great for early planting — but Fennel will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Fennel root diseases.

Charlotte County, FL (Zone 10a) Year-round
365 days
Last Spring Frost No frost
365 growing days
First Fall Frost No frost

Charlotte County Soil Profile

Soil Type

Sand

Soil pH

6.0-7.0

Drainage

Well Drained

Fennel Planting Timeline — Charlotte County, FL

Fennel Planting Calendar

Activity When Date Range
Start Indoors November 20 Nov 20 – Dec 4
Transplant Outdoors January 8 Jan 8 – Jan 22
Direct Sow January 1 Jan 1 – Jan 22
Harvest March 12 Mar 12 – Apr 23

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 5.5–7 · Your soil: N/A

🗺️ USDA Zone

Zone 10a

📆 Growing Season

365 days in Charlotte County

Growing Tips for Charlotte County

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 Charlotte County, FL?

Charlotte County is in Zone 10a with an average last frost of January 1. Plan your Fennel planting based on this frost date — see the calendar above for exact timing.

What planting zone is Charlotte County, FL?

Charlotte County, Florida is in USDA Hardiness Zone 10a. The average last spring frost is January 1 and first fall frost is December 31.

When should I plant Fennel in Charlotte County, FL?

In Charlotte County, FL, plant Fennel after the last frost (around January 1) and before the first frost (around December 31). Best results when soil holds above 50°F.

What growing zone is Charlotte County, FL for Fennel?

Charlotte County sits in USDA Zone 10a. Fennel grows reliably in zones 4a through 10b, so it's a good fit here.

Can Fennel grow in Charlotte County's climate?

Yes — Fennel grows well in Charlotte County's temperate climate. Charlotte County averages a 365-day frost-free season, with last frost around January 1 and first frost around December 31.

🌱

Your Charlotte County Garden Planner — Free

A 22-page printable planner built for Charlotte County (Zone 10a). 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 Charlotte County, FL. Local conditions may vary. Last updated: June 2026.

Sources & credits

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