When to Plant Raspberries in Belknap County, NH
Raspberries are beloved bramble fruits producing sweet, delicate berries in red, golden, black, and purple varieties. They spread by underground runners and are very productive.
Belknap County, New Hampshire is in USDA Zone 5a. The average last spring frost is May 3 and the first fall frost is October 11, giving you a growing season of approximately 161 days.
At an elevation of 764 feet, Belknap County receives approximately 48.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Raspberries during the growing season.
Belknap County Soil Profile
Soil Type
Silt Loam
Soil pH
4.8-6.8
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.
Plant Water Budget
Raspberries Planting Timeline — Belknap County, NH
Raspberries Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | May 24 | May 24 – Jun 7 |
· 24" apart · Rows 72" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Transplant Outdoors |
| June | Transplant Outdoors |
| July | — |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
Moderate — regular watering
Days to Maturity
365–730 days
Soil pH
5.5 – 6.5
USDA Zone
Zone 5a
Growing Season
161 days
Growing Tips for Belknap County
Provide a trellis for support. Prune summer-bearing types by removing spent canes after harvest. For ever-bearing types, mow all canes in late winter for a single fall crop.
Companion Planting
Good Companions
Avoid Planting Near
Level Up Your Garden
Raspberries in Other Locations
Frequently Asked Questions
When should I plant Raspberries in Belknap County, NH?
Belknap County is in Zone 5a with an average last frost of May 3. Plan your Raspberries planting based on this frost date — see the calendar above for exact timing.
What planting zone is Belknap County, NH?
Belknap County, New Hampshire is in USDA Hardiness Zone 5a. The average last spring frost is May 3 and first fall frost is October 11.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Belknap County gardeners in Zone 5a 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.