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When to plant Fennel in Wolfe County, KY

Wolfe County's spring Fennel window runs April 25 through May 16. most warm-season crops establish quickly once soil holds above 60°F.

When to Plant Fennel in Wolfe County, KY

Wolfe County, Kentucky Zone 7a June

Your June gardening checklist

Each item below is timed to Wolfe County, Kentucky's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost April 18
Avg. first frost October 21
Soil temp (4") 70°F
Watering Low
Pest pressure High
Daylight 14.6 hrs
  1. Sow fennel in trays indoors

    Bottom-water once the first true leaves appear — it keeps stems dry and knocks back damping-off.

Coming up in July — start thinking about
  • First harvests: fennel

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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.

Wolfe County, Kentucky is in USDA Zone 7a. The average last spring frost is April 18 and the first fall frost is October 21, giving you a growing season of approximately 186 days.

At an elevation of 1,977 feet, Wolfe County receives approximately 49.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Fennel during the growing season.

Wolfe County, KY (Zone 7a) Moderate season
186 days
Last Spring Frost April 18
186 growing days
First Fall Frost October 21

Wolfe County Soil Profile

Soil Type

Silt Loam

Soil pH

5.5-7.1

Drainage

Well Drained

Fennel Planting Risk Windows

Early Start (70% safe) ✓ Fits season (71 days to spare)
Start indoors: Feb 20 Transplant: Apr 24 🍅 Harvest: Jun 26 – Aug 7
Recommended (50%) ✓ Fits season (67 days to spare)
Start indoors: Feb 28 Transplant: May 2 🍅 Harvest: Jul 4 – Aug 15
Safe Start (90%) ✓ Fits season (60 days to spare)
Start indoors: Mar 18 Transplant: May 20 🍅 Harvest: Jul 22 – Sep 2

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 Wolfe County

How your county's soil matches Fennel's growing requirements.

Soil pH

Your soil pH (5.5–7.1) overlaps with Fennel's range (5.5–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Wolfe County is excellent for Fennel — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.0%). Annual compost additions will help Fennel.

How to Plant Fennel

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Succession Planting Fennel

3
successive plantings in your 186-day season

Sow every 6.9 weeks. Last sowing by Jul 23 to harvest before frost.

Fennel Water Budget

Plant needs
0.6″/week
Rainfall provides
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Fennel

Fennel needs approximately 0.6 inches of water per week (2.6" per month). Here's how your county's rainfall compares month by month.

Month Fennel Needs Rainfall You Supplement Action
Jan 4.3" 0" ❄️ Dormant
Feb 3.8" 0" ❄️ Dormant
Mar 4.4" 0" ❄️ Dormant
Apr 2.6" 4.2" 0" ✅ Rainfall sufficient
May 2.6" 4.1" 0" ✅ Rainfall sufficient
Jun 2.6" 4.5" 0" ✅ Rainfall sufficient
Jul 2.6" 4.8" 0" ✅ Rainfall sufficient
Aug 2.6" 4.2" 0" ✅ Rainfall sufficient
Sep 2.6" 4.1" 0" ✅ Rainfall sufficient
Oct 2.6" 2.9" 0" ✅ Rainfall sufficient
Nov 3.9" 0" ❄️ Dormant
Dec 4" 0" ❄️ Dormant

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

Fennel 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" — every day above 50°F 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 needs ~1,312 GDD — county provides 3,255 GDD Excellent fit

Fennel Planting Timeline — Wolfe County, KY

Fennel Planting Calendar

Activity When Date Range
Start Indoors February 28 Feb 28 – Mar 14
Transplant Outdoors May 2 May 2 – May 16
Direct Sow April 25 Apr 25 – May 16
Harvest July 4 Jul 4 – Aug 15

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Start Indoors
April 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

0.6"/week · Natural rainfall sufficient

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 5.5–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

186 days in Wolfe County

Growing Tips for Fennel in Wolfe County

Direct sow Fennel outdoors after April 18 in Wolfe County when soil has warmed and frost danger has passed.

Common pests for Fennel 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 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 Wolfe County, KY?

Wolfe County is in Zone 7a with an average last frost of April 18. Plan your Fennel planting based on this frost date — see the calendar above for exact timing.

What planting zone is Wolfe County, KY?

Wolfe County, Kentucky is in USDA Hardiness Zone 7a. The average last spring frost is April 18 and first fall frost is October 21.

When should I plant Fennel in Wolfe County, KY?

In Wolfe County, KY, plant Fennel after the last frost (around April 18) and before the first frost (around October 21). Best results when soil holds above 50°F.

What growing zone is Wolfe County, KY for Fennel?

Wolfe County sits in USDA Zone 7a. Fennel grows reliably in zones 4a through 10b, so it's a good fit here.

Can Fennel grow in Wolfe County's climate?

Yes — Fennel grows well in Wolfe County's temperate climate. Wolfe County averages a 186-day frost-free season, with last frost around April 18 and first frost around October 21.

🌱

Your Wolfe County Garden Planner — Free

A 22-page printable planner built for Wolfe County (Zone 7a). 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 Wolfe County, KY. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.