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When to Plant Lavender in Chautauqua County, NY

Chautauqua County, New York Zone 6a May

This month in Chautauqua County, New York

A quick May briefing for Chautauqua County, New York gardeners — what's urgent, what's next, and what can wait.

Avg. last frost May 5
Avg. first frost October 18
Soil temp (4") 59°F
Watering Low
Pest pressure Low
Daylight 14.4 hrs
  1. Time to transplant lavender

    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.

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Lavender is a fragrant perennial herb with silvery foliage and purple flower spikes. It is prized for its essential oils, culinary uses, and ornamental beauty.

Chautauqua County, New York is in USDA Zone 6a. The average last spring frost is May 5 and the first fall frost is October 18, giving you a growing season of approximately 166 days.

At an elevation of 196 feet, Chautauqua County receives approximately 49.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85°F, providing good warmth for Lavender during the growing season.

Chautauqua County, NY (Zone 6a) Moderate season
166 days
Last Spring Frost May 5
166 growing days
First Fall Frost October 18

Chautauqua County Soil Profile

Soil Type

Silt Loam

Soil pH

4.9-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: May 5 🍅 Harvest: Aug 4 – Nov 17
Recommended (50%) ✗ May not fit
Transplant: May 12 🍅 Harvest: Aug 11 – Nov 24
Safe Start (90%) ✗ May not fit
Transplant: May 30 🍅 Harvest: Aug 29 – Dec 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 Chautauqua County

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

Soil pH

Your soil pH (4.9–6.3) is more acidic than Lavender prefers (6.5–8.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

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

How to Plant Lavender

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Plant Water Budget

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

Monthly Watering Guide for Lavender

Lavender needs approximately 0.3 inches of water per week (1.3" per month). Here's how your county's rainfall compares month by month.

Month Lavender Needs Rainfall You Supplement Action
Jan 3.3" 0" ❄️ Dormant
Feb 3.4" 0" ❄️ Dormant
Mar 4.2" 0" ❄️ Dormant
Apr 3.8" 0" ❄️ Dormant
May 1.3" 4.5" 0" ✅ Rainfall sufficient
Jun 1.3" 4.8" 0" ✅ Rainfall sufficient
Jul 1.3" 5.6" 0" ✅ Rainfall sufficient
Aug 1.3" 4.6" 0" ✅ Rainfall sufficient
Sep 1.3" 4.4" 0" ✅ Rainfall sufficient
Oct 1.3" 4.4" 0" ✅ Rainfall sufficient
Nov 3.2" 0" ❄️ Dormant
Dec 3.7" 0" ❄️ Dormant

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

Lavender 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.

Lavender needs ~1,994 GDD — county provides 2,282 GDD Good fit

Lavender Planting Timeline — Chautauqua County, NY

Lavender Planting Calendar

Activity When Date Range
Transplant Outdoors May 12 May 12 – May 26
Harvest August 11 Aug 11 – Nov 24

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.3"/week · Natural rainfall sufficient

📅 Days to Maturity

90–200 days

🧪 Soil pH

Needs 6.5–8 · Your soil: too_acidic

🗺️ USDA Zone

Zone 6a

📆 Growing Season

166 days in Chautauqua County

Growing Tips for Lavender in Chautauqua County

Direct sow Lavender outdoors after May 05 in Chautauqua County when soil has warmed and frost danger has passed.

Your 166.0-day growing season in Chautauqua County is tight for Lavender (90.0-200.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Plant in well-drained, sandy soil. Avoid heavy mulching around the crown. Prune after flowering but do not cut into old wood. Lavender resents wet winter conditions.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Lavender in Chautauqua County, NY?

Chautauqua County is in Zone 6a with an average last frost of May 5. Plan your Lavender planting based on this frost date — see the calendar above for exact timing.

What planting zone is Chautauqua County, NY?

Chautauqua County, New York is in USDA Hardiness Zone 6a. The average last spring frost is May 5 and first fall frost is October 18.

🌱

Your Chautauqua County Garden Planner — Free

A 24-page printable planner built for Chautauqua County (Zone 6a). 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 Chautauqua 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.