When to Plant Carrots in Grand Isle County, VT
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.
Grand Isle County, Vermont is in USDA Zone 4b. The average last spring frost is May 6 and the first fall frost is October 10, giving you a growing season of approximately 157 days.
At an elevation of 1,011 feet, Grand Isle County receives approximately 38.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84°F, so choose short-season varieties of Carrots to ensure they mature before fall.
Grand Isle County Soil Profile
Soil Type
Silt Loam
Soil pH
4.8-6.4
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 — Grand Isle County, VT
Carrots Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | April 29 | Apr 29 – May 20 |
| Fall Sowing | July 18 | Jul 18 – Aug 1 |
| Harvest | July 1 | Jul 1 – Aug 5 |
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 | — |
| July | Fall Sowing Harvest |
| August | Fall Sowing Harvest |
| 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 4b
Growing Season
157 days
Growing Tips for Grand Isle 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 Grand Isle County, VT?
Grand Isle County is in Zone 4b with an average last frost of May 6. Plan your Carrots planting based on this frost date — see the calendar above for exact timing.
What planting zone is Grand Isle County, VT?
Grand Isle County, Vermont is in USDA Hardiness Zone 4b. The average last spring frost is May 6 and first fall frost is October 10.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Grand Isle County gardeners in Zone 4b organize planting dates, track what's growing, and never miss a planting window.
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