When to Plant Goji Berries in Broomfield County, CO
May in Broomfield County, Colorado — your action list
Here's what deserves your attention in Broomfield County, Colorado this month. Everything below is tailored to Zone 6a and timed around your local frost dates.
June will be here before you know it — start on
- Transplants going out: goji berries
Goji berries are a deciduous shrub producing small, bright red berries valued as a superfood. The plants are extremely hardy and drought-tolerant once established.
Broomfield County, Colorado is in USDA Zone 6a. The average last spring frost is May 14 and the first fall frost is September 26, giving you a growing season of approximately 135 days.
At an elevation of 7,037 feet, Broomfield County receives approximately 13.9 inches of rainfall annually with predominantly loam soil. Summer highs average 87°F, providing good warmth for Goji Berries during the growing season. With low rainfall, drip irrigation is essential for growing Goji Berries successfully. Mulch heavily to conserve soil moisture.
Broomfield County Soil Profile
Soil Type
Loam
Soil pH
6.2-8.2
Drainage
Well Drained
Plant Planting Risk Windows
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 Broomfield County
How your county's soil matches Goji Berries's growing requirements.
Soil pH
Your soil pH (6.2–8.2) overlaps with Goji Berries's range (6.5–8.0), though not a perfect match.
Soil Texture
The loam soil in Broomfield County is excellent for Goji Berries — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.9%). Annual compost additions will help Goji Berries.
How to Plant Goji Berries
Plant Water Budget
Water stress score is 6/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Goji Berries
Goji Berries needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.
| Month | Goji Berries Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 0.9" | 0" | ❄️ Dormant |
| Feb | — | 0.7" | 0" | ❄️ Dormant |
| Mar | — | 1.1" | 0" | ❄️ Dormant |
| Apr | — | 1.5" | 0" | ❄️ Dormant |
| May | 2.2" | 1.7" | 0.5" | 💧 Light watering |
| Jun | 2.2" | 0.9" | 1.3" | 🚿 Regular watering |
| Jul | 2.2" | 1.3" | 0.9" | 💧 Light watering |
| Aug | 2.2" | 1.6" | 0.6" | 💧 Light watering |
| Sep | 2.2" | 1.1" | 1.1" | 🚿 Regular watering |
| Oct | — | 1.2" | 0" | ❄️ Dormant |
| Nov | — | 1" | 0" | ❄️ Dormant |
| Dec | — | 0.8" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Sep in Broomfield County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Goji Berries 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.
Goji Berries Planting Timeline — Broomfield County, CO
Goji Berries Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | June 4 | Jun 4 – Jun 18 |
· 48" apart · Rows 72" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | — |
| June | Transplant Outdoors |
| July | — |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.5"/week · Only during dry spells
📅 Days to Maturity
730–1095 days
🧪 Soil pH
Needs 6.5–8 · Your soil: acceptable
🗺️ USDA Zone
Zone 6a
📆 Growing Season
135 days in Broomfield County
Growing Tips for Goji Berries in Broomfield County
Direct sow Goji Berries outdoors after May 14 in Broomfield County when soil has warmed and frost danger has passed.
Your 135.0-day growing season in Broomfield County is tight for Goji Berries (730.0-1095.0 days to maturity). Start indoors and choose early-maturing varieties.
Common pests for Goji Berries in this region include tomato hornworm and aphids. Use row covers early in the season and inspect plants weekly.
Broomfield County receives only 14" of rain annually. Goji Berries needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.
General growing tips
Plant in well-drained soil in full sun. Prune annually to manage the arching, somewhat wild growth habit. Berries ripen over an extended period in summer and fall. Can be trellised.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Goji Berries in Other Locations
Frequently Asked Questions
When should I plant Goji Berries in Broomfield County, CO?
Broomfield County is in Zone 6a with an average last frost of May 14. Plan your Goji Berries planting based on this frost date — see the calendar above for exact timing.
What planting zone is Broomfield County, CO?
Broomfield County, Colorado is in USDA Hardiness Zone 6a. The average last spring frost is May 14 and first fall frost is September 26.
Your Broomfield County Garden Planner — Free
A 24-page printable planner built for Broomfield 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.