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When to Plant Zucchini in Jefferson County, FL

Zucchini is an incredibly prolific summer squash that can produce an abundance of fruit from just a few plants. It is versatile in the kitchen from grilling to baking.

Jefferson County, Florida is in USDA Zone 8b. The average last spring frost is March 9 and the first fall frost is November 21, giving you a growing season of approximately 257 days.

At an elevation of 105 feet, Jefferson County receives approximately 56 inches of rainfall annually with predominantly sand soil. Summer highs average 95Β°F, so Zucchini may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring β€” great for early planting β€” but Zucchini will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Zucchini root diseases.

Jefferson County, FL (Zone 8b) Long season
257 days
Last Spring Frost March 9
257 growing days
First Fall Frost November 21

Jefferson County Soil Profile

Soil Type

Sand

Soil pH

5.2-5.9

Drainage

Well Drained

How Much Zucchini to Grow

6-10 lbs
Average yield per plant
1
Plants per person
2 sq ft
Space per person

For a family of 4, plant approximately 4 zucchini plants in about 8 sq ft. In Jefferson County's 257-day season, you'll have plenty of time for a full harvest. Plan your garden layout →

Monthly Watering Guide for Zucchini

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

Month Zucchini Needs Rainfall You Supplement Action
Jan β€” 3" 0" ❄️ Dormant
Feb β€” 2.9" 0" ❄️ Dormant
Mar 4.3" 3.2" 1.1" πŸ’§ Light watering
Apr 4.3" 2.4" 1.9" πŸ’§ Light watering
May 4.3" 3.8" 0.5" πŸ’§ Light watering
Jun 4.3" 7.8" 0" βœ… Rainfall sufficient
Jul 4.3" 8.9" 0" βœ… Rainfall sufficient
Aug 4.3" 7.4" 0" βœ… Rainfall sufficient
Sep 4.3" 6.4" 0" βœ… Rainfall sufficient
Oct 4.3" 5" 0" βœ… Rainfall sufficient
Nov 4.3" 2.5" 1.8" πŸ’§ Light watering
Dec β€” 2.7" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Jefferson County). Supplement amounts are based on average rainfall β€” actual needs vary with temperature, soil, and mulching.

Zucchini Planting Timeline β€” Jefferson County, FL

Zucchini Planting Calendar

Activity When Date Range
Start Indoors February 9 Feb 9 – Feb 23
Transplant Outdoors March 23 Mar 23 – Apr 6
Direct Sow March 16 Mar 16 – Apr 6
Harvest May 11 May 11 – Jul 6

Plant 1" deep Β· 30" apart Β· Rows 42" apart

Month-by-Month Timeline

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

Growing Conditions

β˜€οΈ Sun

Full Sun (6-8+ hours)

πŸ’§ Water

Moderate β€” regular watering

πŸ“… Days to Maturity

45–60 days

πŸ§ͺ Soil pH

Needs 6–7.5 Β· Your soil: N/A

πŸ—ΊοΈ USDA Zone

Zone 8b

πŸ“† Growing Season

257 days in Jefferson County

Growing Tips for Jefferson County

Direct sow after last frost. Harvest when fruits are 6-8 inches long for best flavor and texture. Check plants daily in summer as fruits can double in size overnight.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Zucchini in Jefferson County, FL?

Jefferson County is in Zone 8b with an average last frost of March 9. Plan your Zucchini planting based on this frost date β€” see the calendar above for exact timing.

What planting zone is Jefferson County, FL?

Jefferson County, Florida is in USDA Hardiness Zone 8b. The average last spring frost is March 9 and first fall frost is November 21.

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Plan Your Garden with Confidence

Get our free Garden Planner β€” designed to help Jefferson County gardeners in Zone 8b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Jefferson County, FL. Local conditions may vary. Last updated: April 2026.