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When to plant Fennel in Harrison County, KY

Harrison County's spring Fennel window runs April 23 through May 14. time plantings around the expected last-frost window for best survival.

When to Plant Fennel in Harrison County, KY

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.

Harrison County, Kentucky is in USDA Zone 6b. The average last spring frost is April 16 and the first fall frost is October 26, giving you a growing season of approximately 193 days.

At an elevation of 2,105 feet, Harrison County receives approximately 52.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 88°F, providing good warmth for Fennel during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Fennel root diseases.

Harrison County, KY (Zone 6b) Moderate season
193 days
Last Spring Frost April 16
193 growing days
First Fall Frost October 26

Harrison County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-7

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 5.2" 0" ❄️ Dormant
Feb 3.9" 0" ❄️ Dormant
Mar 4.9" 0" ❄️ Dormant
Apr 4.3" 4.3" 0" ✅ Rainfall sufficient
May 4.3" 4" 0.3" 💧 Light watering
Jun 4.3" 4.5" 0" ✅ Rainfall sufficient
Jul 4.3" 4.9" 0" ✅ Rainfall sufficient
Aug 4.3" 5.4" 0" ✅ Rainfall sufficient
Sep 4.3" 3.8" 0.5" 💧 Light watering
Oct 4.3" 3.8" 0.5" 💧 Light watering
Nov 4" 0" ❄️ Dormant
Dec 4.1" 0" ❄️ Dormant

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

Fennel Planting Timeline — Harrison County, KY

Fennel Planting Calendar

Activity When Date Range
Start Indoors February 19 Feb 19 – Mar 5
Transplant Outdoors April 30 Apr 30 – May 14
Direct Sow April 23 Apr 23 – May 14
Harvest July 2 Jul 2 – Aug 13

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

Month-by-Month Timeline

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

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 6b

📆 Growing Season

193 days in Harrison County

Growing Tips for Harrison 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 Harrison County, KY?

Harrison County is in Zone 6b with an average last frost of April 16. Plan your Fennel planting based on this frost date — see the calendar above for exact timing.

What planting zone is Harrison County, KY?

Harrison County, Kentucky is in USDA Hardiness Zone 6b. The average last spring frost is April 16 and first fall frost is October 26.

When should I plant Fennel in Harrison County, KY?

In Harrison County, KY, plant Fennel after the last frost (around April 16) and before the first frost (around October 26). Best results when soil holds above 50°F.

What growing zone is Harrison County, KY for Fennel?

Harrison County sits in USDA Zone 6b. Fennel grows reliably in zones 4a through 10b, so it's a good fit here.

Can Fennel grow in Harrison County's climate?

Yes — Fennel grows well in Harrison County's temperate climate. Harrison County averages a 193-day frost-free season, with last frost around April 16 and first frost around October 26.

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Your Harrison County Garden Planner — Free

A 22-page printable planner built for Harrison County (Zone 6b). 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 Harrison County, KY. Local conditions may vary. Last updated: August 2026.

Sources & credits

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