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When to Plant Quince in Hillsborough County, FL

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.

Hillsborough County, Florida is in USDA Zone 9b. The average last spring frost is January 25 and the first fall frost is December 20, giving you a growing season of approximately 329 days.

At an elevation of 63 feet, Hillsborough County receives approximately 54.4 inches of rainfall annually with predominantly sand soil. Summer highs average 98ยฐF, so Quince may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” 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.

Hillsborough County, FL (Zone 9b) Year-round
329 days
Last Spring Frost January 25
329 growing days
First Fall Frost December 20

Hillsborough County Soil Profile

Soil Type

Sand

Soil pH

4.9-5.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Jan 31
Recommended (50%) ✓ Fits season
Transplant: Feb 8
Safe Start (90%) ✓ Fits season
Transplant: Mar 9

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.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.7″/week
You supply
0.7″/week
Watering frequency 2-3 times/week
Season total 2,142 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Quince needs ~34,310 GDD — county provides 7,755 GDD May not mature

Quince Planting Timeline โ€” Hillsborough County, FL

Quince Planting Calendar

Activity When Date Range
Transplant Outdoors February 8 Feb 8 โ€“ Feb 22

ยท 120" apart ยท Rows 144" apart

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

1095โ€“1825 days

Soil pH

6 โ€“ 7.5

USDA Zone

Zone 9b

Growing Season

329 days

Growing Tips for Hillsborough County

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

Level Up Your Garden

Frequently Asked Questions

When should I plant Quince in Hillsborough County, FL?

Hillsborough County is in Zone 9b with an average last frost of January 25. Plan your Quince planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Hillsborough County, FL?

Hillsborough County, Florida is in USDA Hardiness Zone 9b. The average last spring frost is January 25 and first fall frost is December 20.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Hillsborough County gardeners in Zone 9b organize planting dates, track what's growing, and never miss a planting window.

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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 Hillsborough County, FL. Local conditions may vary. Last updated: April 2026.