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When to Plant Cucumber in Franklin County, FL

Franklin County, Florida Zone 9a May

This month in Franklin County, Florida

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Franklin County, Florida.

Avg. last frost February 25
Avg. first frost November 28
Soil temp (4") 73°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. It's harvest week for cucumber

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

A few tasks this May that'll pay off in June
  • First harvests: cucumber

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Cucumbers are a warm-season vine crop available in slicing and pickling varieties. They are prolific producers when given warmth, moisture, and a trellis to climb.

Franklin County, Florida is in USDA Zone 9a. The average last spring frost is February 25 and the first fall frost is November 28, giving you a growing season of approximately 276 days.

At an elevation of 487 feet, Franklin County receives approximately 59.9 inches of rainfall annually with predominantly sand soil. Summer highs average 96°F, so Cucumber may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Cucumber will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Cucumber root diseases.

Franklin County, FL (Zone 9a) Year-round
276 days
Last Spring Frost February 25
276 growing days
First Fall Frost November 28

Franklin County Soil Profile

Soil Type

Sand

Soil pH

4.9-6

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (167 days to spare)
Start indoors: Jan 11 Transplant: Feb 15 🍅 Harvest: Apr 12 – Jun 7
Recommended (50%) ✓ Fits season (157 days to spare)
Start indoors: Jan 28 Transplant: Mar 4 🍅 Harvest: Apr 29 – Jun 24
Safe Start (90%) ✓ Fits season (158 days to spare)
Start indoors: Feb 17 Transplant: Mar 24 🍅 Harvest: May 19 – Jul 14

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 Franklin County

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

Soil pH

Your soil pH (4.9–6.0) is more acidic than Cucumber prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Cucumber is a heavy drinker but your soil drains very quickly. Mulch heavily and consider drip irrigation.

Organic Matter

Organic matter is low (1.6%). Add 2-3 inches of compost before planting Cucumber.

How to Plant Cucumber

0.5"
Planting Depth
24"
Between Plants
48"
Between Rows

Succession Planting Cucumber

6
successive plantings in your 276-day season

Sow every 5.7 weeks. Last sowing by Sep 19 to harvest before frost.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.9″/week
You supply
1.0″/week
Watering frequency 2-3 times/week
Season total 2,568 gal / 100 sq ft

Monthly Watering Guide for Cucumber

Cucumber needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Cucumber Needs Rainfall You Supplement Action
Jan 2.6" 0" ❄️ Dormant
Feb 6.5" 2.8" 3.7" 🚿 Regular watering
Mar 6.5" 3.2" 3.3" 🚿 Regular watering
Apr 6.5" 2.6" 3.9" 🚿 Regular watering
May 6.5" 4" 2.5" 💧 Light watering
Jun 6.5" 7.6" 0" ✅ Rainfall sufficient
Jul 6.5" 9.2" 0" ✅ Rainfall sufficient
Aug 6.5" 10" 0" ✅ Rainfall sufficient
Sep 6.5" 7.4" 0" ✅ Rainfall sufficient
Oct 6.5" 4.9" 1.6" 💧 Light watering
Nov 6.5" 2.9" 3.6" 🚿 Regular watering
Dec 2.8" 0" ❄️ Dormant

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

Cucumber 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.

Cucumber needs ~1,320 GDD — county provides 6,094 GDD Excellent fit

Cucumber Planting Timeline — Franklin County, FL

Cucumber Planting Calendar

Activity When Date Range
Start Indoors January 28 Jan 28 – Feb 11
Transplant Outdoors March 4 Mar 4 – Mar 18
Direct Sow February 25 Feb 25 – Mar 18
Harvest April 29 Apr 29 – Jun 24

Plant 0.5" deep · 24" apart · Rows 48" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.5"/week · 2-3 times/week

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

276 days in Franklin County

Growing Tips for Cucumber in Franklin County

Direct sow Cucumber outdoors after February 25 in Franklin County when soil has warmed and frost danger has passed.

Sandy soil in Franklin County dries quickly — mulch Cucumber 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 Franklin County, provide afternoon shade for Cucumber and water deeply in the morning.

Common pests for Cucumber in this region include squash vine borer and cucumber beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow after last frost or start indoors 3 weeks early. Provide a trellis for vining types to save space and improve air circulation. Harvest frequently to encourage production.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes
  • Sage

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cucumber in Franklin County, FL?

Franklin County is in Zone 9a with an average last frost of February 25. Plan your Cucumber planting based on this frost date — see the calendar above for exact timing.

What planting zone is Franklin County, FL?

Franklin County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is February 25 and first fall frost is November 28.

🌱

Your Franklin County Garden Planner — Free

A 24-page printable planner built for Franklin County (Zone 9a). 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 Franklin County, FL. 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.