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When to Plant Zucchini in Bent County, CO

Bent County, Colorado Zone 6a May

Top priorities for Bent County, Colorado gardeners in May

A quick May briefing for Bent County, Colorado gardeners — what's urgent, what's next, and what can wait.

Avg. last frost April 29
Avg. first frost October 9
Soil temp (4") 53°F
Watering High
Pest pressure Low
Daylight 14.1 hrs
  1. Time to transplant zucchini

    Plant tomatoes deep — bury the stem up to the first true leaves to grow extra roots. Everything else goes in at the same depth it grew in the tray.

  2. Seed zucchini outdoors

    These tolerate cool soil, so you're not gambling by sowing now.

June prep starts now
  • Starting indoors: zucchini

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Zucchini is an incredibly prolific summer squash that can produce an abundance of fruit from just a few plants. It is versatile in the kitchen from grilling to baking.

Bent County, Colorado is in USDA Zone 6a. The average last spring frost is April 29 and the first fall frost is October 9, giving you a growing season of approximately 163 days.

At an elevation of 4,516 feet, Bent County receives approximately 12.4 inches of rainfall annually with predominantly loam soil. Summer highs average 87°F, providing good warmth for Zucchini during the growing season. With low rainfall, drip irrigation is essential for growing Zucchini successfully. Mulch heavily to conserve soil moisture.

Bent County, CO (Zone 6a) Moderate season
163 days
Last Spring Frost April 29
163 growing days
First Fall Frost October 9
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Bent County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (44 days to spare)
Start indoors: Mar 21 Transplant: May 9 🍅 Harvest: Jun 27 – Aug 22
Recommended (50%) ✓ Fits season (44 days to spare)
Start indoors: Mar 25 Transplant: May 13 🍅 Harvest: Jul 1 – Aug 26
Safe Start (90%) ✓ Fits season (45 days to spare)
Start indoors: Apr 7 Transplant: May 26 🍅 Harvest: Jul 14 – Sep 8

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 Bent County

How your county's soil matches Zucchini's growing requirements.

Soil pH

Your soil pH (6.8–7.8) overlaps with Zucchini's range (6.0–7.5), though not a perfect match.

Soil Texture

The loam soil in Bent County is excellent for Zucchini — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Zucchini.

How to Plant Zucchini

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

Succession Planting Zucchini

4
successive plantings in your 163-day season

Sow every 5.1 weeks. Last sowing by Aug 10 to harvest before frost.

Plant Water Budget

Plant needs
1.2″/week
Rainfall provides
0.3″/week
You supply
1.1″/week
Watering frequency 2-3 times/week
Season total 1,533 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Zucchini

Zucchini needs approximately 1.2 inches of water per week (5.2" per month). Here's how your county's rainfall compares month by month.

Month Zucchini Needs Rainfall You Supplement Action
Jan 0.9" 0" ❄️ Dormant
Feb 0.6" 0" ❄️ Dormant
Mar 1" 0" ❄️ Dormant
Apr 5.2" 1.4" 3.8" 🚿 Regular watering
May 5.2" 1.6" 3.6" 🚿 Regular watering
Jun 5.2" 0.9" 4.3" 🚿 Regular watering
Jul 5.2" 1" 4.2" 🚿 Regular watering
Aug 5.2" 1.4" 3.8" 🚿 Regular watering
Sep 5.2" 1" 4.2" 🚿 Regular watering
Oct 5.2" 1.1" 4.1" 🚿 Regular watering
Nov 0.8" 0" ❄️ Dormant
Dec 0.8" 0" ❄️ Dormant

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

Zucchini 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.

Zucchini needs ~801 GDD — county provides 2,485 GDD Excellent fit

Zucchini Planting Timeline — Bent County, CO

Zucchini Planting Calendar

Activity When Date Range
Start Indoors March 25 Mar 25 – Apr 8
Transplant Outdoors May 13 May 13 – May 27
Direct Sow May 6 May 6 – May 27
Harvest July 1 Jul 1 – Aug 26

Plant 1" deep · 30" apart · Rows 42" 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
October
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.2"/week · 2-3 times/week

📅 Days to Maturity

45–60 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 6a

📆 Growing Season

163 days in Bent County

Growing Tips for Zucchini in Bent County

Direct sow Zucchini outdoors after April 29 in Bent County when soil has warmed and frost danger has passed.

Your generous 163.0-day season in Bent County allows multiple plantings of Zucchini. Sow every 22.0 days for continuous harvest.

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

Bent County receives only 12" of rain annually. Zucchini needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Direct sow after last frost. Harvest when fruits are 6-8 inches long for best flavor and texture. Check plants daily in summer as fruits can double in size overnight.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Zucchini in Bent County, CO?

Bent County is in Zone 6a with an average last frost of April 29. Plan your Zucchini planting based on this frost date — see the calendar above for exact timing.

What planting zone is Bent County, CO?

Bent County, Colorado is in USDA Hardiness Zone 6a. The average last spring frost is April 29 and first fall frost is October 9.

🌱

Your Bent County Garden Planner — Free

A 24-page printable planner built for Bent 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 Bent 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.