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When to Plant Fennel in Kings County, NY

Kings County, New York Zone 7b May

What to do in May

Your Kings County, New York garden is entering a new phase. Here's what's on the schedule for May and why each task matters now.

Avg. last frost March 29
Avg. first frost November 12
Soil temp (4") 68°F
Watering Low
Pest pressure Moderate
Daylight 14.3 hrs
  1. Start fennel indoors

    Label every cell. You will absolutely forget which is which otherwise.

Before June arrives, get these ready
  • 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.

Kings County, New York is in USDA Zone 7b. The average last spring frost is March 29 and the first fall frost is November 12, giving you a growing season of approximately 228 days.

At an elevation of 505 feet, Kings County receives approximately 48.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 89°F, providing good warmth for Fennel during the growing season.

Kings County, NY (Zone 7b) Long season
228 days
Last Spring Frost March 29
228 growing days
First Fall Frost November 12
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Kings County Soil Profile

Soil Type

Silt Loam

Soil pH

5-6.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (109 days to spare)
Start indoors: Feb 4 Transplant: Apr 8 🍅 Harvest: Jun 10 – Jul 22
Recommended (50%) ✓ Fits season (109 days to spare)
Start indoors: Feb 8 Transplant: Apr 12 🍅 Harvest: Jun 14 – Jul 26
Safe Start (90%) ✓ Fits season (118 days to spare)
Start indoors: Feb 19 Transplant: Apr 23 🍅 Harvest: Jun 25 – Aug 6

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 Kings County

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

Soil pH

Your soil pH (5.0–6.4) overlaps with Fennel's range (5.5–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.6%). Annual compost additions will help Fennel.

How to Plant Fennel

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

Succession Planting Fennel

4
successive plantings in your 228-day season

Sow every 6.9 weeks. Last sowing by Aug 14 to harvest before frost.

Plant Water Budget

Plant needs
0.6″/week
Rainfall provides
0.9″/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 3.5" 0" ❄️ Dormant
Feb 3" 0" ❄️ Dormant
Mar 2.6" 4.5" 0" ✅ Rainfall sufficient
Apr 2.6" 4.4" 0" ✅ Rainfall sufficient
May 2.6" 4.4" 0" ✅ Rainfall sufficient
Jun 2.6" 3.9" 0" ✅ Rainfall sufficient
Jul 2.6" 5.4" 0" ✅ Rainfall sufficient
Aug 2.6" 4.6" 0" ✅ Rainfall sufficient
Sep 2.6" 4.4" 0" ✅ Rainfall sufficient
Oct 2.6" 3.5" 0" ✅ Rainfall sufficient
Nov 2.6" 3.5" 0" ✅ Rainfall sufficient
Dec 3.1" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Kings 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 ~1,256 GDD — county provides 3,819 GDD Excellent fit

Fennel Planting Timeline — Kings County, NY

Fennel Planting Calendar

Activity When Date Range
Start Indoors February 8 Feb 8 – Feb 22
Transplant Outdoors April 12 Apr 12 – Apr 26
Direct Sow April 5 Apr 5 – Apr 26
Harvest June 14 Jun 14 – Jul 26

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March
April Transplant Outdoors Direct Sow
May
June Harvest
July Harvest
August
September
October
November
December
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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 7b

📆 Growing Season

228 days in Kings County

Growing Tips for Fennel in Kings County

Direct sow Fennel outdoors after March 29 in Kings 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 Kings County, NY?

Kings County is in Zone 7b with an average last frost of March 29. Plan your Fennel planting based on this frost date — see the calendar above for exact timing.

What planting zone is Kings County, NY?

Kings County, New York is in USDA Hardiness Zone 7b. The average last spring frost is March 29 and first fall frost is November 12.

🌱

Your Kings County Garden Planner — Free

A 24-page printable planner built for Kings County (Zone 7b). 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 Kings County, NY. Local conditions may vary. Last updated: May 2026.

Sources & credits

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