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When to plant Ground Cherry in Ouray County, CO

In Ouray County, Ground Cherry is a single-season spring crop — there's no second fall window. Plant July 9–July 23 for an 65–80-day harvest, finishing well before the September 10 first frost.

When to Plant Ground Cherry in Ouray County, CO

Ouray County, Colorado Zone 5b June

June in Ouray County, Colorado — your action list

Welcome to June in Zone 5b. These are the moves that will have the biggest impact on your growing season.

Avg. last frost June 18
Avg. first frost September 10
Soil temp (4") 49°F
Watering Critical
Pest pressure High
Daylight 14.6 hrs

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Ground cherries produce small, sweet, tropical-tasting berries enclosed in papery husks. They are related to tomatillos and cape gooseberries and self-sow readily.

Ouray County, Colorado is in USDA Zone 5b. The average last spring frost is June 18 and the first fall frost is September 10, giving you a growing season of approximately 84 days.

At an elevation of 7,449 feet, Ouray County receives approximately 12.6 inches of rainfall annually with predominantly loam soil. Summer highs average 86°F, providing good warmth for Ground Cherry during the growing season. With low rainfall, drip irrigation is essential for growing Ground Cherry successfully. Mulch heavily to conserve soil moisture.

Ouray County, CO (Zone 5b) Very short season
84 days
Last Spring Frost June 18
84 growing days
First Fall Frost September 10

Ouray County Soil Profile

Soil Type

Loam

Soil pH

6.4-8.3

Drainage

Well Drained

Ground Cherry Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: Jun 3 🍅 Harvest: Aug 12 – Oct 7
Recommended (50%) ✗ May not fit
Transplant: Jul 9 🍅 Harvest: Sep 17 – Nov 12
Safe Start (90%) ✗ May not fit
Transplant: Jul 20 🍅 Harvest: Sep 28 – Nov 23

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 Ouray County

How your county's soil matches Ground Cherry's growing requirements.

Soil pH

Your soil pH (6.4–8.3) overlaps with Ground Cherry's range (6.0–7.5), though not a perfect match.

Soil Texture

The loam soil in Ouray County is excellent for Ground Cherry — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.7%). Annual compost additions will help Ground Cherry.

How to Plant Ground Cherry

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Ground Cherry Water Budget

Plant needs
1.0″/week
Rainfall provides
0.6″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 332 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Ground Cherry

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

Month Ground Cherry Needs Rainfall You Supplement Action
Jan 0.8" 0" ❄️ Dormant
Feb 0.7" 0" ❄️ Dormant
Mar 1" 0" ❄️ Dormant
Apr 1.4" 0" ❄️ Dormant
May 1.3" 0" ❄️ Dormant
Jun 4.3" 1" 3.3" 🚿 Regular watering
Jul 4.3" 1.2" 3.1" 🚿 Regular watering
Aug 4.3" 1.4" 2.9" 🚿 Regular watering
Sep 4.3" 1.1" 3.2" 🚿 Regular watering
Oct 1" 0" ❄️ Dormant
Nov 1" 0" ❄️ Dormant
Dec 0.7" 0" ❄️ Dormant

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

Ground Cherry 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.

Ground Cherry needs ~1,051 GDD — county provides 1,218 GDD Good fit

Ground Cherry Planting Timeline — Ouray County, CO

Ground Cherry Planting Calendar

Activity When Date Range
Transplant Outdoors July 9 Jul 9 – Jul 23
Harvest September 17 Sep 17 – Nov 12

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

65–80 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 5b

📆 Growing Season

84 days in Ouray County

Growing Tips for Ground Cherry in Ouray County

Direct sow Ground Cherry outdoors after June 18 in Ouray County when soil has warmed and frost danger has passed.

Your 84.0-day growing season in Ouray County is tight for Ground Cherry (65.0-80.0 days to maturity). Start indoors and choose early-maturing varieties.

Common pests for Ground Cherry in this region include tomato hornworm and aphids. Use row covers early in the season and inspect plants weekly.

Ouray County receives only 13" of rain annually. Ground Cherry needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Start seeds indoors 6-8 weeks before last frost. Let fruits fall to the ground naturally when ripe inside their husks. The husk turns brown and papery when the fruit is ready.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Ground Cherry in Ouray County, CO?

Ouray County is in Zone 5b with an average last frost of June 18. Plan your Ground Cherry planting based on this frost date — see the calendar above for exact timing.

What planting zone is Ouray County, CO?

Ouray County, Colorado is in USDA Hardiness Zone 5b. The average last spring frost is June 18 and first fall frost is September 10.

When should I plant Ground Cherry in Ouray County, CO?

In Ouray County, CO, plant Ground Cherry after the last frost (around June 18) and before the first frost (around September 10). Best results when soil holds above 50°F.

What growing zone is Ouray County, CO for Ground Cherry?

Ouray County sits in USDA Zone 5b. Ground Cherry grows reliably in zones 4a through 11b, so it's a good fit here.

Can Ground Cherry grow in Ouray County's climate?

Yes — Ground Cherry grows well in Ouray County's temperate climate. Ouray County averages a 84-day frost-free season, with last frost around June 18 and first frost around September 10.

🌱

Your Ouray County Garden Planner — Free

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

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.