When to plant Haskaps in Carbon County, MT
Carbon County's 138-day season only supports one Haskaps planting per year. Sow between June 3 and June 17 for the best chance at full maturity before September 28.
When to Plant Haskaps in Carbon County, MT
This month in Carbon County, Montana
June is a pivotal month for Carbon County, Montana gardens. Focus on these tasks first and you'll set up the rest of the season for success.
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Time to transplant haskaps
Bring a watering can to the bed. Each transplant gets a drink the moment it's in the ground, not ten minutes later.
Haskaps (honeyberries) are extremely cold-hardy shrubs producing elongated blue berries with a complex blueberry-raspberry flavor. They fruit very early in the season.
Carbon County, Montana is in USDA Zone 5a. The average last spring frost is May 13 and the first fall frost is September 28, giving you a growing season of approximately 138 days.
At an elevation of 5,849 feet, Carbon County receives approximately 23.3 inches of rainfall annually with predominantly loam soil. Summer highs average 83°F, so choose short-season varieties of Haskaps to ensure they mature before fall.
Carbon County Soil Profile
Soil Type
Loam
Soil pH
6.8-8.1
Drainage
Well Drained
Haskaps 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 Carbon County
How your county's soil matches Haskaps's growing requirements.
Soil pH
Your soil pH (6.8–8.1) overlaps with Haskaps's range (5.5–7.5), though not a perfect match.
Soil Texture
The loam soil in Carbon County is excellent for Haskaps — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.3%). Annual compost additions will help Haskaps.
How to Plant Haskaps
Haskaps Water Budget
Water stress score is 8/10 — consider drought-tolerant varieties and mulching
Monthly Watering Guide for Haskaps
Haskaps needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Haskaps Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 1.9" | 0" | ❄️ Dormant |
| Feb | — | 1.5" | 0" | ❄️ Dormant |
| Mar | — | 2.3" | 0" | ❄️ Dormant |
| Apr | — | 2.6" | 0" | ❄️ Dormant |
| May | 4.3" | 2.4" | 1.9" | 💧 Light watering |
| Jun | 4.3" | 1.9" | 2.4" | 🚿 Regular watering |
| Jul | 4.3" | 2" | 2.3" | 🚿 Regular watering |
| Aug | 4.3" | 2.2" | 2.1" | 💧 Light watering |
| Sep | 4.3" | 1.8" | 2.5" | 🚿 Regular watering |
| Oct | — | 2.2" | 0" | ❄️ Dormant |
| Nov | — | 1.4" | 0" | ❄️ Dormant |
| Dec | — | 1.3" | 0" | ❄️ Dormant |
Water needs are for active growing months only (May–Sep in Carbon County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Haskaps 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.
Haskaps Planting Timeline — Carbon County, MT
Haskaps Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | June 3 | Jun 3 – Jun 17 |
· 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
1"/week · 1-2 times/week
📅 Days to Maturity
730–1095 days
🧪 Soil pH
Needs 5.5–7.5 · Your soil: acceptable
🗺️ USDA Zone
Zone 5a
📆 Growing Season
138 days in Carbon County
Growing Tips for Haskaps in Carbon County
Direct sow Haskaps outdoors after May 13 in Carbon County when soil has warmed and frost danger has passed.
Your 138.0-day growing season in Carbon County is tight for Haskaps (730.0-1095.0 days to maturity). Start indoors and choose early-maturing varieties.
Carbon County receives only 23" of rain annually. Haskaps needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.
General growing tips
Plant at least two different varieties for cross-pollination. Fruits ripen 2-3 weeks before strawberries. Protect from birds. Very low maintenance once established. Tolerates extreme cold.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Haskaps in Other Locations
Frequently Asked Questions
When should I plant Haskaps in Carbon County, MT?
Carbon County is in Zone 5a with an average last frost of May 13. Plan your Haskaps planting based on this frost date — see the calendar above for exact timing.
What planting zone is Carbon County, MT?
Carbon County, Montana is in USDA Hardiness Zone 5a. The average last spring frost is May 13 and first fall frost is September 28.
When should I plant Haskaps in Carbon County, MT?
In Carbon County, MT, plant Haskaps after the last frost (around May 13) and before the first frost (around September 28). Best results when soil holds above 50°F.
What growing zone is Carbon County, MT for Haskaps?
Carbon County sits in USDA Zone 5a. Haskaps grows reliably in zones 2a through 7b, so it's a good fit here.
Can Haskaps grow in Carbon County's climate?
Yes — Haskaps grows well in Carbon County's temperate climate. Carbon County averages a 138-day frost-free season, with last frost around May 13 and first frost around September 28.
Your Carbon County Garden Planner — Free
A 22-page printable planner built for Carbon County (Zone 5a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.