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When to plant Winter Melon in El Paso County, CO

In El Paso County, Winter Melon is a single-season spring crop — there's no second fall window. Plant May 18–June 8 for an 90–120-day harvest, finishing well before the October 6 first frost.

When to Plant Winter Melon in El Paso County, CO

Winter melon (wax gourd) is a large Asian squash with a waxy white coating that allows long storage. The mild flesh is used in soups and stir-fries.

El Paso County, Colorado is in USDA Zone 6a. The average last spring frost is May 11 and the first fall frost is October 6, giving you a growing season of approximately 148 days.

At an elevation of 8,317 feet, El Paso County receives approximately 23.5 inches of rainfall annually with predominantly loam soil. Summer highs average 87°F, providing good warmth for Winter Melon during the growing season.

El Paso County, CO (Zone 6a) Short season
148 days
Last Spring Frost May 11
148 growing days
First Fall Frost October 6

El Paso County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.9

Drainage

Well Drained

Monthly Watering Guide for Winter Melon

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

Month Winter Melon Needs Rainfall You Supplement Action
Jan 1.7" 0" ❄️ Dormant
Feb 1.6" 0" ❄️ Dormant
Mar 1.8" 0" ❄️ Dormant
Apr 2.4" 0" ❄️ Dormant
May 4.3" 2.8" 1.5" 💧 Light watering
Jun 4.3" 1.6" 2.7" 🚿 Regular watering
Jul 4.3" 2.3" 2" 💧 Light watering
Aug 4.3" 3" 1.3" 💧 Light watering
Sep 4.3" 1.7" 2.6" 🚿 Regular watering
Oct 4.3" 1.9" 2.4" 🚿 Regular watering
Nov 1.5" 0" ❄️ Dormant
Dec 1.2" 0" ❄️ Dormant

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

Winter Melon Planting Timeline — El Paso County, CO

Winter Melon Planting Calendar

Activity When Date Range
Start Indoors March 16 Mar 16 – Mar 30
Transplant Outdoors May 25 May 25 – Jun 8
Direct Sow May 18 May 18 – Jun 8
Harvest August 24 Aug 24 – Oct 12

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

90–120 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 6a

📆 Growing Season

148 days in El Paso County

Growing Tips for El Paso County

Start seeds indoors 3-4 weeks early. Provide ample space for sprawling vines. Harvest when the waxy coating develops on the rind. Fruits can weigh 15-30 pounds.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Winter Melon in El Paso County, CO?

El Paso County is in Zone 6a with an average last frost of May 11. Plan your Winter Melon planting based on this frost date — see the calendar above for exact timing.

What planting zone is El Paso County, CO?

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

When should I plant Winter Melon in El Paso County, CO?

In El Paso County, CO, plant Winter Melon after the last frost (around May 11) and before the first frost (around October 6). Best results when soil holds above 50°F.

What growing zone is El Paso County, CO for Winter Melon?

El Paso County sits in USDA Zone 6a. Winter Melon grows reliably in zones 5a through 11b, so it's a good fit here.

Can Winter Melon grow in El Paso County's climate?

Yes — Winter Melon grows well in El Paso County's temperate climate. El Paso County averages a 148-day frost-free season, with last frost around May 11 and first frost around October 6.

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Your El Paso County Garden Planner — Free

A 22-page printable planner built for El Paso 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 El Paso County, CO. Local conditions may vary. Last updated: June 2026.

Sources & credits

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