When to Plant Carrots in Belknap County, NH
Carrots are a popular root vegetable available in orange, purple, white, and yellow varieties. They are rich in beta-carotene and have a sweet, earthy flavor.
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 Carrots 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
Carrots Planting Timeline — Belknap County, NH
Carrots Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | April 19 | Apr 19 – May 10 |
| Fall Sowing | August 2 | Aug 2 – Aug 16 |
| Harvest | June 21 | Jun 21 – Jul 26 |
Plant 0.5" deep · 6" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Direct Sow |
| May | Direct Sow |
| June | Harvest |
| July | Harvest |
| August | Fall Sowing |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
Moderate — regular watering
Days to Maturity
60–80 days
Soil pH
6 – 6.8
USDA Zone
Zone 5a
Growing Season
161 days
Growing Tips for Belknap County
Sow seeds directly in loose, stone-free soil for straight roots. Keep soil moist until germination which can take 2-3 weeks. Thin seedlings to 2 inches apart.
Companion Planting
Good Companions
Avoid Planting Near
Level Up Your Garden
Isolate 1/2 mile from Queen Anne's Lace (wild carrot). Biennial — requires two seasons.
Carrots in Other Locations
Frequently Asked Questions
When should I plant Carrots in Belknap County, NH?
Belknap County is in Zone 5a with an average last frost of May 3. Plan your Carrots 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.
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