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When to Plant Cucumber in Kay County, OK

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.

Kay County, Oklahoma is in USDA Zone 6b. The average last spring frost is April 12 and the first fall frost is October 25, giving you a growing season of approximately 196 days.

At an elevation of 549 feet, Kay County receives approximately 31.5 inches of rainfall annually with predominantly loam soil. Summer highs average 89ยฐF, providing good warmth for Cucumber during the growing season.

Kay County, OK (Zone 6b) Moderate season
196 days
Last Spring Frost April 12
196 growing days
First Fall Frost October 25

Kay County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (70 days to spare)
Start indoors: Mar 1 Transplant: Apr 19 🍅 Harvest: Jun 14 – Aug 9
Recommended (50%) ✓ Fits season (70 days to spare)
Start indoors: Mar 8 Transplant: Apr 26 🍅 Harvest: Jun 21 – Aug 16
Safe Start (90%) ✓ Fits season (74 days to spare)
Start indoors: Mar 22 Transplant: May 10 🍅 Harvest: Jul 5 – Aug 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
1.0″/week
Watering frequency 2-3 times/week
Season total 1,727 gal / 100 sq ft
Drought risk

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

Cucumber needs ~1,005 GDD — county provides 3,283 GDD Excellent fit

Cucumber Planting Timeline โ€” Kay County, OK

Cucumber Planting Calendar

Activity When Date Range
Start Indoors March 8 Mar 8 โ€“ Mar 22
Transplant Outdoors April 26 Apr 26 โ€“ May 10
Direct Sow April 19 Apr 19 โ€“ May 10
Harvest June 21 Jun 21 โ€“ Aug 16

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Start Indoors
April Transplant Outdoors Direct Sow
May Transplant Outdoors Direct Sow
June Harvest
July Harvest
August Harvest
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 6b

Growing Season

196 days

Growing Tips for Kay 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 Kay County, OK?

Kay County is in Zone 6b with an average last frost of April 12. Plan your Cucumber planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Kay County, OK?

Kay County, Oklahoma is in USDA Hardiness Zone 6b. The average last spring frost is April 12 and first fall frost is October 25.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Kay County gardeners in Zone 6b 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 Kay County, OK. Local conditions may vary. Last updated: April 2026.