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When to Plant Cucumber in Seminole County, FL

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.

Seminole County, Florida is in USDA Zone 9b. The average last spring frost is February 3 and the first fall frost is December 21, giving you a growing season of approximately 321 days.

At an elevation of 260 feet, Seminole County receives approximately 53.9 inches of rainfall annually with predominantly sand soil. Summer highs average 95ยฐF, so Cucumber may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” 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.

Seminole County, FL (Zone 9b) Year-round
321 days
Last Spring Frost February 3
321 growing days
First Fall Frost December 21

Seminole County Soil Profile

Soil Type

Sand

Soil pH

5.2-5.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (213 days to spare)
Start indoors: Dec 22 Transplant: Jan 26 🍅 Harvest: Mar 23 – May 18
Recommended (50%) ✓ Fits season (202 days to spare)
Start indoors: Jan 6 Transplant: Feb 10 🍅 Harvest: Apr 7 – Jun 2
Safe Start (90%) ✓ Fits season (179 days to spare)
Start indoors: Feb 3 Transplant: Mar 10 🍅 Harvest: May 5 – Jun 30

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
1.5″/week
Rainfall provides
0.7″/week
You supply
1.5″/week
Watering frequency 2-3 times/week
Season total 4,288 gal / 100 sq ft
Drought risk

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

Cucumber needs ~1,275 GDD — county provides 6,842 GDD Excellent fit

Cucumber Planting Timeline โ€” Seminole County, FL

Cucumber Planting Calendar

Activity When Date Range
Start Indoors January 6 Jan 6 โ€“ Jan 20
Transplant Outdoors February 10 Feb 10 โ€“ Feb 24
Direct Sow February 3 Feb 3 โ€“ Feb 24
Harvest April 7 Apr 7 โ€“ Jun 2

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

High โ€” keep soil consistently moist

Days to Maturity

50โ€“70 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 9b

Growing Season

321 days

Growing Tips for Seminole County

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

Level Up Your Garden

Frequently Asked Questions

When should I plant Cucumber in Seminole County, FL?

Seminole County is in Zone 9b with an average last frost of February 3. Plan your Cucumber planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Seminole County, FL?

Seminole County, Florida is in USDA Hardiness Zone 9b. The average last spring frost is February 3 and first fall frost is December 21.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Seminole 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 Seminole County, FL. Local conditions may vary. Last updated: April 2026.