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When to Plant Delicata Squash in Saguache County, CO

Saguache County, Colorado Zone 5b May

This month in Saguache County, Colorado

Each item below is timed to Saguache County, Colorado's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost May 30
Avg. first frost September 20
Soil temp (4") 42°F
Watering Moderate
Pest pressure Low
Daylight 14.1 hrs
Before June arrives, get these ready
  • Transplants going out: delicata squash
  • Direct-sowing: delicata squash

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Delicata squash is a winter squash with an edible skin and sweet, creamy orange flesh. Its compact vines make it suitable for smaller gardens.

Saguache County, Colorado is in USDA Zone 5b. The average last spring frost is May 30 and the first fall frost is September 20, giving you a growing season of approximately 113 days.

At an elevation of 5,293 feet, Saguache County receives approximately 23.7 inches of rainfall annually with predominantly loam soil. Summer highs average 80°F, so choose short-season varieties of Delicata Squash to ensure they mature before fall.

Saguache County, CO (Zone 5b) Short season
113 days
Last Spring Frost May 30
113 growing days
First Fall Frost September 20

Saguache County Soil Profile

Soil Type

Loam

Soil pH

6.4-8.4

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Apr 19 Transplant: Jun 7 🍅 Harvest: Aug 30 – Oct 4
Recommended (50%) ✗ May not fit
Start indoors: Apr 25 Transplant: Jun 13 🍅 Harvest: Sep 5 – Oct 10
Safe Start (90%) ✗ May not fit
Start indoors: May 10 Transplant: Jun 28 🍅 Harvest: Sep 20 – Oct 25

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 Saguache County

How your county's soil matches Delicata Squash's growing requirements.

Soil pH

Your soil pH (6.4–8.4) is more alkaline than Delicata Squash prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in Saguache County is excellent for Delicata Squash — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.8%). Annual compost additions will help Delicata Squash.

How to Plant Delicata Squash

1"
Planting Depth
30"
Between Plants
42"
Between Rows

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 144 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Delicata Squash

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

Month Delicata Squash Needs Rainfall You Supplement Action
Jan 1.6" 0" ❄️ Dormant
Feb 1.2" 0" ❄️ Dormant
Mar 1.9" 0" ❄️ Dormant
Apr 2.4" 0" ❄️ Dormant
May 4.3" 3.1" 1.2" 💧 Light watering
Jun 4.3" 1.7" 2.6" 🚿 Regular watering
Jul 4.3" 2.1" 2.2" 🚿 Regular watering
Aug 4.3" 2.3" 2" 💧 Light watering
Sep 4.3" 2" 2.3" 🚿 Regular watering
Oct 2.2" 0" ❄️ Dormant
Nov 1.7" 0" ❄️ Dormant
Dec 1.6" 0" ❄️ Dormant

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

Delicata Squash 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.

Delicata Squash needs ~900 GDD — county provides 1,130 GDD Good fit

Delicata Squash Planting Timeline — Saguache County, CO

Delicata Squash Planting Calendar

Activity When Date Range
Start Indoors April 25 Apr 25 – May 9
Transplant Outdoors June 13 Jun 13 – Jun 27
Direct Sow June 6 Jun 6 – Jun 27
Harvest September 5 Sep 5 – Oct 10

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

80–100 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 5b

📆 Growing Season

113 days in Saguache County

Growing Tips for Delicata Squash in Saguache County

Direct sow Delicata Squash outdoors after May 30 in Saguache County when soil has warmed and frost danger has passed.

Your 113.0-day growing season in Saguache County is tight for Delicata Squash (80.0-100.0 days to maturity). Start indoors and choose early-maturing varieties.

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

Saguache County receives only 24" of rain annually. Delicata Squash needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Direct sow after last frost on mounds. Harvest when skin is hard and ivory with green stripes. The thin skin does not need peeling. Stores 2-3 months in a cool place.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Delicata Squash in Saguache County, CO?

Saguache County is in Zone 5b with an average last frost of May 30. Plan your Delicata Squash planting based on this frost date — see the calendar above for exact timing.

What planting zone is Saguache County, CO?

Saguache County, Colorado is in USDA Hardiness Zone 5b. The average last spring frost is May 30 and first fall frost is September 20.

🌱

Your Saguache County Garden Planner — Free

A 24-page printable planner built for Saguache County (Zone 5b). 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 Saguache County, CO. 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.