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When to Plant Fennel (herb) in Cattaraugus County, NY

Cattaraugus County, New York Zone 5b May

May in Cattaraugus County, New York — your action list

Your Cattaraugus 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 May 22
Avg. first frost October 2
Soil temp (4") 60°F
Watering Low
Pest pressure Low
Daylight 14.4 hrs
  1. Plant out fennel (herb)

    Harden off for 7 days — a little more sun each day — before planting. That's the difference between a seedling that thrives and one that stalls.

  2. Outdoor sowing time: fennel (herb)

    These tolerate cool soil, so you're not gambling by sowing now.

A few tasks this May that'll pay off in June
  • Starting indoors: fennel (herb)

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Herb fennel is grown for its aromatic leaves, stalks, and seeds rather than a bulb. It has a strong anise flavor and its flowers attract beneficial insects.

Cattaraugus County, New York is in USDA Zone 5b. The average last spring frost is May 22 and the first fall frost is October 2, giving you a growing season of approximately 133 days.

At an elevation of 486 feet, Cattaraugus County receives approximately 43.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Fennel (herb) during the growing season.

Cattaraugus County, NY (Zone 5b) Short season
133 days
Last Spring Frost May 22
133 growing days
First Fall Frost October 2

Cattaraugus County Soil Profile

Soil Type

Silt Loam

Soil pH

5.2-6.6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (2 days to spare)
Start indoors: Apr 12 Transplant: May 10 🍅 Harvest: Jul 12 – Sep 20
Recommended (50%) ✓ Fits season (7 days to spare)
Start indoors: Apr 17 Transplant: May 15 🍅 Harvest: Jul 17 – Sep 25
Safe Start (90%) ✓ Fits season (2 days to spare)
Start indoors: May 4 Transplant: Jun 1 🍅 Harvest: Aug 3 – Oct 12

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 Cattaraugus County

How your county's soil matches Fennel (herb)'s growing requirements.

Soil pH

Your soil pH (5.2–6.6) overlaps with Fennel (herb)'s range (5.5–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is moderate (3.2%). Annual compost additions will help Fennel (herb).

How to Plant Fennel (herb)

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

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Fennel (herb)

2
successive plantings in your 133-day season

Sow every 6.9 weeks. Last sowing by Jul 04 to harvest before frost.

For a dedicated fall crop, sow by Jul 24.

Plant Water Budget

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

Monthly Watering Guide for Fennel (herb)

Fennel (herb) 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 (herb) Needs Rainfall You Supplement Action
Jan 3.4" 0" ❄️ Dormant
Feb 2.4" 0" ❄️ Dormant
Mar 3.6" 0" ❄️ Dormant
Apr 3.8" 0" ❄️ Dormant
May 4.3" 4.1" 0.2" 💧 Light watering
Jun 4.3" 3.9" 0.4" 💧 Light watering
Jul 4.3" 4.7" 0" ✅ Rainfall sufficient
Aug 4.3" 3.9" 0.4" 💧 Light watering
Sep 4.3" 3.6" 0.7" 💧 Light watering
Oct 4.3" 3.5" 0.8" 💧 Light watering
Nov 3.7" 0" ❄️ Dormant
Dec 2.9" 0" ❄️ Dormant

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

Fennel (herb) 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 (herb) needs ~1,088 GDD — county provides 1,928 GDD Excellent fit

Fennel (herb) Planting Timeline — Cattaraugus County, NY

Fennel (herb) Planting Calendar

Activity When Date Range
Start Indoors April 17 Apr 17 – May 1
Transplant Outdoors May 15 May 15 – May 29
Direct Sow May 8 May 8 – May 29
Harvest July 17 Jul 17 – Sep 25
Fall Sowing July 24 Jul 24 – Aug 7

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 5.5–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 5b

📆 Growing Season

133 days in Cattaraugus County

Growing Tips for Fennel (herb) in Cattaraugus County

Direct sow Fennel (herb) outdoors after May 22 in Cattaraugus County when soil has warmed and frost danger has passed.

Common pests for Fennel (herb) 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 spring or fall. Unlike Florence fennel, herb fennel does not form a bulb. Harvest fronds as needed and seeds when they turn brown. Self-sows readily.

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Peppers
  • Green Beans

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Fennel (herb) in Cattaraugus County, NY?

Cattaraugus County is in Zone 5b with an average last frost of May 22. Plan your Fennel (herb) planting based on this frost date — see the calendar above for exact timing.

What planting zone is Cattaraugus County, NY?

Cattaraugus County, New York is in USDA Hardiness Zone 5b. The average last spring frost is May 22 and first fall frost is October 2.

🌱

Your Cattaraugus County Garden Planner — Free

A 24-page printable planner built for Cattaraugus County (Zone 5b). 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 Cattaraugus 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.