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When to plant Cranberries in Archuleta County, CO

Archuleta County's short 96-day growing season means one Cranberries planting between July 4 and July 18. No fall crop in Zone 5b.

When to Plant Cranberries in Archuleta County, CO

Archuleta County, Colorado Zone 5b July

Archuleta County, Colorado gardeners: here's your July plan

Your Archuleta County, Colorado garden is entering a new phase. Here's what's on the schedule for July and why each task matters now.

Avg. last frost June 13
Avg. first frost September 17
Soil temp (4") 63°F
Watering High
Pest pressure High
Daylight 14.3 hrs
  1. Harden off and plant cranberries

    Your last frost (June 13) has passed. These warm-season crops can handle outdoor soil now.

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Cranberries are low-growing, vine-like shrubs that produce tart red berries in fall. They grow in acidic, boggy conditions and are surprisingly easy to cultivate.

Archuleta County, Colorado is in USDA Zone 5b. The average last spring frost is June 13 and the first fall frost is September 17, giving you a growing season of approximately 96 days.

At an elevation of 5,346 feet, Archuleta County receives approximately 14 inches of rainfall annually with predominantly loam soil. Summer highs average 85°F, providing good warmth for Cranberries during the growing season. With low rainfall, drip irrigation is essential for growing Cranberries successfully. Mulch heavily to conserve soil moisture.

Archuleta County, CO (Zone 5b) Very short season
96 days
Last Spring Frost June 13
96 growing days
First Fall Frost September 17

Archuleta County Soil Profile

Soil Type

Loam

Soil pH

6.3-7.9

Drainage

Well Drained

Cranberries Planting Risk Windows

Early Start (70% safe) ✓ Fits season
Transplant: Jun 27
Recommended (50%) ✓ Fits season
Transplant: Jul 4
Safe Start (90%) ✓ Fits season
Transplant: Jul 15

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 Archuleta County

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

Soil pH

Your soil pH (6.3–7.9) is more alkaline than Cranberries prefers (4.0–5.5). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

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

How to Plant Cranberries

36"
Between Plants
48"
Between Rows

Cranberries Water Budget

Plant needs
1.5″/week
Rainfall provides
0.6″/week
You supply
1.1″/week
Watering frequency 2-3 times/week
Season total 910 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Cranberries

Cranberries needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Cranberries Needs Rainfall You Supplement Action
Jan 0.9" 0" ❄️ Dormant
Feb 0.9" 0" ❄️ Dormant
Mar 1.1" 0" ❄️ Dormant
Apr 1.7" 0" ❄️ Dormant
May 1.9" 0" ❄️ Dormant
Jun 6.5" 1.1" 5.4" 🚿 Regular watering
Jul 6.5" 1.3" 5.2" 🚿 Regular watering
Aug 6.5" 1.3" 5.2" 🚿 Regular watering
Sep 6.5" 1.1" 5.4" 🚿 Regular watering
Oct 1.1" 0" ❄️ Dormant
Nov 0.9" 0" ❄️ Dormant
Dec 0.8" 0" ❄️ Dormant

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

Cranberries 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.

Cranberries needs ~12,547 GDD — county provides 1,320 GDD May not mature

Cranberries Planting Timeline — Archuleta County, CO

Cranberries Planting Calendar

Activity When Date Range
Transplant Outdoors July 4 Jul 4 – Jul 18

· 36" apart · Rows 48" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.5"/week · 2-3 times/week

📅 Days to Maturity

730–1095 days

🧪 Soil pH

Needs 4–5.5 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 5b

📆 Growing Season

96 days in Archuleta County

Growing Tips for Cranberries in Archuleta County

Direct sow Cranberries outdoors after June 13 in Archuleta County when soil has warmed and frost danger has passed.

Your 96.0-day growing season in Archuleta County is tight for Cranberries (730.0-1095.0 days to maturity). Start indoors and choose early-maturing varieties.

Archuleta County receives only 14" of rain annually. Cranberries needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Create an acidic, consistently moist bed with peat moss. Cranberries do not need to be flooded to grow; flooding is only used for commercial harvesting. Mulch with sand in early spring.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cranberries in Archuleta County, CO?

Archuleta County is in Zone 5b with an average last frost of June 13. Plan your Cranberries planting based on this frost date — see the calendar above for exact timing.

What planting zone is Archuleta County, CO?

Archuleta County, Colorado is in USDA Hardiness Zone 5b. The average last spring frost is June 13 and first fall frost is September 17.

When should I plant Cranberries in Archuleta County, CO?

In Archuleta County, CO, plant Cranberries after the last frost (around June 13) and before the first frost (around September 17). Best results when soil holds above 50°F.

What growing zone is Archuleta County, CO for Cranberries?

Archuleta County sits in USDA Zone 5b. Cranberries grows reliably in zones 2a through 7b, so it's a good fit here.

Can Cranberries grow in Archuleta County's climate?

Yes — Cranberries grows well in Archuleta County's temperate climate. Archuleta County averages a 96-day frost-free season, with last frost around June 13 and first frost around September 17.

🌱

Your Archuleta County Garden Planner — Free

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

Sources & credits

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