Blog

When to Plant Zucchini in Uinta County, WY

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.

Uinta County, Wyoming is in USDA Zone 4b. The average last spring frost is June 17 and the first fall frost is August 31, giving you a growing season of approximately 75 days.

At an elevation of 5,768 feet, Uinta County receives approximately 23.5 inches of rainfall annually with predominantly loam soil. Summer highs average 82ยฐF, so choose short-season varieties of Zucchini to ensure they mature before fall.

Uinta County, WY (Zone 4b) Very short season
75 days
Last Spring Frost June 17
75 growing days
First Fall Frost August 31

Uinta County Soil Profile

Soil Type

Loam

Soil pH

6.3-8.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Apr 29 Transplant: Jul 1 🍅 Harvest: Aug 19 – Oct 14
Recommended (50%) ✗ May not fit
Start indoors: May 6 Transplant: Jul 8 🍅 Harvest: Aug 26 – Oct 21
Safe Start (90%) ✗ May not fit
Start indoors: May 13 Transplant: Jul 15 🍅 Harvest: Sep 2 – Oct 28

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 Uinta County

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

Soil pH

Your soil pH (6.3โ€“8.3) overlaps with Zucchini's range (6.0โ€“7.5), though not a perfect match.

Soil Texture

The loam soil in Uinta County is excellent for Zucchini โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help Zucchini.

How to Plant Zucchini

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

How Much Zucchini to Grow

6-10 lbs
Average yield per plant
1
Plants per person
8.8 sq ft
Space per person

For a family of 4, plant approximately 4 zucchini plants in about 35 sq ft. In Uinta County's 75-day season, you'll have plenty of time for a full harvest. Plan your garden layout →

Plant Water Budget

Plant needs
1.2″/week
Rainfall provides
1.3″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” 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 โ€” 1.5" 0" โ„๏ธ Dormant
Feb โ€” 1.3" 0" โ„๏ธ Dormant
Mar โ€” 2.2" 0" โ„๏ธ Dormant
Apr โ€” 2.8" 0" โ„๏ธ Dormant
May โ€” 2.7" 0" โ„๏ธ Dormant
Jun 5.2" 1.8" 3.4" ๐Ÿšฟ Regular watering
Jul 5.2" 1.8" 3.4" ๐Ÿšฟ Regular watering
Aug 5.2" 2.2" 3" ๐Ÿšฟ Regular watering
Sep โ€” 2.2" 0" โ„๏ธ Dormant
Oct โ€” 1.9" 0" โ„๏ธ Dormant
Nov โ€” 1.7" 0" โ„๏ธ Dormant
Dec โ€” 1.5" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Junโ€“Aug in Uinta County). Supplement amounts are based on average rainfall โ€” 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" โ€” every day above 50ยฐF 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 ~604 GDD — county provides 862 GDD Excellent fit

Zucchini Planting Timeline โ€” Uinta County, WY

Zucchini Planting Calendar

Activity When Date Range
Start Indoors May 6 May 6 โ€“ May 20
Transplant Outdoors July 8 Jul 8 โ€“ Jul 22
Direct Sow July 1 Jul 1 โ€“ Jul 22
Harvest August 26 Aug 26 โ€“ Oct 21

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1.2"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

45โ€“60 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 4b

๐Ÿ“† Growing Season

75 days in Uinta County

Growing Tips for Zucchini in Uinta County

Direct sow Zucchini outdoors after June 17 in Uinta County when soil has warmed and frost danger has passed.

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.

Uinta County receives only 24" of rain annually. Zucchini needs consistent moisture โ€” 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.

Recommended Zucchini Varieties for Uinta County

Quick-producing varieties for shorter seasons

Black Beauty (50d) Raven (48d) Eight Ball (40d)

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 Uinta County, WY?

Uinta County is in Zone 4b with an average last frost of June 17. Plan your Zucchini planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Uinta County, WY?

Uinta County, Wyoming is in USDA Hardiness Zone 4b. The average last spring frost is June 17 and first fall frost is August 31.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Uinta County gardeners in Zone 4b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Uinta County, WY. Local conditions may vary. Last updated: April 2026.