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When to Plant Quince in Colleton County, SC

Colleton County, South Carolina Zone 8b May

Colleton County, South Carolina gardeners: here's your May plan

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

Avg. last frost March 10
Avg. first frost November 13
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 13.7 hrs

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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.

Colleton County, South Carolina is in USDA Zone 8b. The average last spring frost is March 10 and the first fall frost is November 13, giving you a growing season of approximately 248 days.

At an elevation of 265 feet, Colleton County receives approximately 58.2 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96°F, so Quince may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Quince will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Quince root diseases.

Colleton County, SC (Zone 8b) Long season
248 days
Last Spring Frost March 10
248 growing days
First Fall Frost November 13

Colleton County Soil Profile

Soil Type

Sandy Loam

Soil pH

4.9-6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Mar 14
Recommended (50%) ✓ Fits season
Transplant: Mar 31
Safe Start (90%) ✓ Fits season
Transplant: Apr 28

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 Colleton County

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

Soil pH

Your soil pH (4.9–6.0) is more acidic than Quince prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

Sandy soil in Colleton County warms quickly in spring but drains fast. Quince will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Quince.

Organic Matter

Organic matter is moderate (2.1%). 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
1.0″/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 4.6" 0" ❄️ Dormant
Feb 5.3" 0" ❄️ Dormant
Mar 4.3" 6.2" 0" ✅ Rainfall sufficient
Apr 4.3" 4.2" 0.1" 💧 Light watering
May 4.3" 4.5" 0" ✅ Rainfall sufficient
Jun 4.3" 5.8" 0" ✅ Rainfall sufficient
Jul 4.3" 5.7" 0" ✅ Rainfall sufficient
Aug 4.3" 5.5" 0" ✅ Rainfall sufficient
Sep 4.3" 4.1" 0.2" 💧 Light watering
Oct 4.3" 3.4" 0.9" 💧 Light watering
Nov 4.3" 4" 0.3" 💧 Light watering
Dec 4.8" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Colleton 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 ~32,120 GDD — county provides 5,456 GDD May not mature

Quince Planting Timeline — Colleton County, SC

Quince Planting Calendar

Activity When Date Range
Transplant Outdoors March 31 Mar 31 – Apr 14

· 120" apart · Rows 144" apart

Month-by-Month Timeline

MonthActivities
January
February
March Transplant Outdoors
April Transplant Outdoors
May
June
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 8b

📆 Growing Season

248 days in Colleton County

Growing Tips for Quince in Colleton County

Direct sow Quince outdoors after March 10 in Colleton County when soil has warmed and frost danger has passed.

Sandy soil in Colleton County dries quickly — mulch Quince with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 96°F in Colleton County, provide afternoon shade for Quince and water deeply in the morning.

Your 248.0-day growing season in Colleton 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 Colleton County, SC?

Colleton County is in Zone 8b with an average last frost of March 10. Plan your Quince planting based on this frost date — see the calendar above for exact timing.

What planting zone is Colleton County, SC?

Colleton County, South Carolina is in USDA Hardiness Zone 8b. The average last spring frost is March 10 and first fall frost is November 13.

🌱

Your Colleton County Garden Planner — Free

A 24-page printable planner built for Colleton County (Zone 8b). 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 Colleton County, SC. 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.