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When to plant Cucumber in Cheyenne County, CO

Plant Cucumber in Cheyenne County from May 9 to May 30 in spring. Cheyenne County sits in USDA Zone 6a, with last frost around May 2 and first frost on October 11.

When to Plant Cucumber in Cheyenne County, CO

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.

Cheyenne County, Colorado is in USDA Zone 6a. The average last spring frost is May 2 and the first fall frost is October 11, giving you a growing season of approximately 162 days.

At an elevation of 7,824 feet, Cheyenne County receives approximately 21.3 inches of rainfall annually with predominantly loam soil. Summer highs average 86°F, providing good warmth for Cucumber during the growing season.

Cheyenne County, CO (Zone 6a) Moderate season
162 days
Last Spring Frost May 2
162 growing days
First Fall Frost October 11

Cheyenne County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.8

Drainage

Well Drained

Monthly Watering Guide for Cucumber

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

Month Cucumber Needs Rainfall You Supplement Action
Jan 1.6" 0" ❄️ Dormant
Feb 1.4" 0" ❄️ Dormant
Mar 1.9" 0" ❄️ Dormant
Apr 1.9" 0" ❄️ Dormant
May 4.3" 2.6" 1.7" 💧 Light watering
Jun 4.3" 1.6" 2.7" 🚿 Regular watering
Jul 4.3" 1.6" 2.7" 🚿 Regular watering
Aug 4.3" 2.2" 2.1" 💧 Light watering
Sep 4.3" 1.6" 2.7" 🚿 Regular watering
Oct 4.3" 2.1" 2.2" 🚿 Regular watering
Nov 1.6" 0" ❄️ Dormant
Dec 1.3" 0" ❄️ Dormant

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

Cucumber Planting Timeline — Cheyenne County, CO

Cucumber Planting Calendar

Activity When Date Range
Start Indoors March 28 Mar 28 – Apr 11
Transplant Outdoors May 16 May 16 – May 30
Direct Sow May 9 May 9 – May 30
Harvest July 11 Jul 11 – Sep 5

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

High — keep soil consistently moist

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 6a

📆 Growing Season

162 days in Cheyenne County

Growing Tips for Cheyenne 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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cucumber in Cheyenne County, CO?

Cheyenne County is in Zone 6a with an average last frost of May 2. Plan your Cucumber planting based on this frost date — see the calendar above for exact timing.

What planting zone is Cheyenne County, CO?

Cheyenne County, Colorado is in USDA Hardiness Zone 6a. The average last spring frost is May 2 and first fall frost is October 11.

When should I plant Cucumber in Cheyenne County, CO?

In Cheyenne County, CO, plant Cucumber after the last frost (around May 2) and before the first frost (around October 11). Best results when soil holds above 50°F.

What growing zone is Cheyenne County, CO for Cucumber?

Cheyenne County sits in USDA Zone 6a. Cucumber grows reliably in zones 3a through 11b, so it's a good fit here.

Can Cucumber grow in Cheyenne County's climate?

Yes — Cucumber grows well in Cheyenne County's temperate climate. Cheyenne County averages a 162-day frost-free season, with last frost around May 2 and first frost around October 11.

🌱

Your Cheyenne County Garden Planner — Free

A 22-page printable planner built for Cheyenne County (Zone 6a). 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 Cheyenne County, CO. Local conditions may vary. Last updated: June 2026.

Sources & credits

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