When to plant Fennel in Lee County, FL
In Zone 10b (Lee County), direct-sow Fennel between January 28 and February 18 for spring, after the January 28 last-frost mark.
When to Plant Fennel in Lee 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.
Lee County, Florida is in USDA Zone 10b. The average last spring frost is January 28 and the first fall frost is December 19, giving you a growing season of approximately 325 days.
At an elevation of 408 feet, Lee County receives approximately 61.6 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.
Lee County Soil Profile
Soil Type
Sand
Soil pH
5.1-5.9
Drainage
Well Drained
Monthly Watering Guide for Fennel
Fennel 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 Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | 4.3" | 3" | 1.3" | 💧 Light watering |
| Feb | 4.3" | 3.3" | 1" | 💧 Light watering |
| Mar | 4.3" | 3.6" | 0.7" | 💧 Light watering |
| Apr | 4.3" | 2.8" | 1.5" | 💧 Light watering |
| May | 4.3" | 4" | 0.3" | 💧 Light watering |
| Jun | 4.3" | 7.6" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 10" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 7.7" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 9.3" | 0" | ✅ Rainfall sufficient |
| Oct | 4.3" | 5.1" | 0" | ✅ Rainfall sufficient |
| Nov | 4.3" | 2.7" | 1.6" | 💧 Light watering |
| Dec | 4.3" | 2.5" | 1.8" | 💧 Light watering |
Water needs are for active growing months only (Jan–Dec in Lee County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Fennel Planting Timeline — Lee County, FL
Fennel Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | December 17 | Dec 17 – Dec 31 |
| Transplant Outdoors | February 4 | Feb 4 – Feb 18 |
| Direct Sow | January 28 | Jan 28 – Feb 18 |
| Harvest | April 8 | Apr 8 – May 20 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Direct Sow |
| February | Transplant Outdoors Direct Sow |
| March | — |
| April | Harvest |
| May | Harvest |
| June | — |
| July | — |
| August | — |
| September | — |
| October | — |
| November | — |
| 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 10b
📆 Growing Season
325 days in Lee County
Growing Tips for Lee 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
Check more plant combinations with our Companion Planting Checker →
Fennel in Other Locations
Frequently Asked Questions
When should I plant Fennel in Lee County, FL?
Lee County is in Zone 10b with an average last frost of January 28. Plan your Fennel planting based on this frost date — see the calendar above for exact timing.
What planting zone is Lee County, FL?
Lee County, Florida is in USDA Hardiness Zone 10b. The average last spring frost is January 28 and first fall frost is December 19.
When should I plant Fennel in Lee County, FL?
In Lee County, FL, plant Fennel after the last frost (around January 28) and before the first frost (around December 19). Best results when soil holds above 50°F.
What growing zone is Lee County, FL for Fennel?
Lee County sits in USDA Zone 10b. Fennel grows reliably in zones 4a through 10b, so it's a good fit here.
Can Fennel grow in Lee County's climate?
Yes — Fennel grows well in Lee County's temperate climate. Lee County averages a 326-day frost-free season, with last frost around January 28 and first frost around December 19.
Your Lee County Garden Planner — Free
A 22-page printable planner built for Lee County (Zone 10b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.