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When to Plant Quince in Orange County, VT

Orange County, Vermont Zone 5a May

What to do in May

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost May 12
Avg. first frost October 7
Soil temp (4") 56°F
Watering Low
Pest pressure Low
Daylight 14.6 hrs
Get ahead of June
  • Transplants going out: quince

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Quince is a small ornamental tree producing fragrant, golden fruits that are too hard and astringent to eat raw but transform into a beautiful rose-colored paste when cooked.

Orange County, Vermont is in USDA Zone 5a. The average last spring frost is May 12 and the first fall frost is October 7, giving you a growing season of approximately 148 days.

At an elevation of 604 feet, Orange County receives approximately 38.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 82°F, so choose short-season varieties of Quince to ensure they mature before fall.

Orange County, VT (Zone 5a) Short season
148 days
Last Spring Frost May 12
148 growing days
First Fall Frost October 7

Orange County Soil Profile

Soil Type

Silt Loam

Soil pH

5.1-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: May 27
Recommended (50%) ✓ Fits season
Transplant: Jun 2
Safe Start (90%) ✓ Fits season
Transplant: Jun 15

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 Orange County

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

Soil pH

Your soil pH (5.1–6.7) is more acidic than Quince prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Quince.

Organic Matter

Organic matter is moderate (3.5%). Annual compost additions will help Quince.

How to Plant Quince

120"
Between Plants
144"
Between Rows

Plant Water Budget

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

Monthly Watering Guide for Quince

Quince needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Quince Needs Rainfall You Supplement Action
Jan 2.9" 0" ❄️ Dormant
Feb 2.3" 0" ❄️ Dormant
Mar 2.8" 0" ❄️ Dormant
Apr 3.7" 0" ❄️ Dormant
May 4.3" 4" 0.3" 💧 Light watering
Jun 4.3" 3.3" 1" 💧 Light watering
Jul 4.3" 3.8" 0.5" 💧 Light watering
Aug 4.3" 3.7" 0.6" 💧 Light watering
Sep 4.3" 3.1" 1.2" 💧 Light watering
Oct 4.3" 3.5" 0.8" 💧 Light watering
Nov 3.3" 0" ❄️ Dormant
Dec 2.5" 0" ❄️ Dormant

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

Quince 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.

Quince needs ~16,790 GDD — county provides 1,702 GDD May not mature

Quince Planting Timeline — Orange County, VT

Quince Planting Calendar

Activity When Date Range
Transplant Outdoors June 2 Jun 2 – Jun 16

· 120" apart · Rows 144" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

1095–1825 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 5a

📆 Growing Season

148 days in Orange County

Growing Tips for Quince in Orange County

Direct sow Quince outdoors after May 12 in Orange County when soil has warmed and frost danger has passed.

Your 148.0-day growing season in Orange County is tight for Quince (1095.0-1825.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Plant in well-drained soil in a warm, sheltered location. Quince is self-fertile. Harvest after frost when fruit is golden and fragrant. Fire blight can be an issue; choose resistant varieties.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Quince in Orange County, VT?

Orange County is in Zone 5a with an average last frost of May 12. Plan your Quince planting based on this frost date — see the calendar above for exact timing.

What planting zone is Orange County, VT?

Orange County, Vermont is in USDA Hardiness Zone 5a. The average last spring frost is May 12 and first fall frost is October 7.

🌱

Your Orange County Garden Planner — Free

A 24-page printable planner built for Orange County (Zone 5a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Orange County, VT. 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.