When to plant Butternut Squash in Windham County, CT
Plant Butternut Squash in Windham County after April 29; the prime window is May 6–May 27.
When to Plant Butternut Squash in Windham County, CT
Butternut squash is a popular winter squash with a long neck, small seed cavity, and sweet, nutty orange flesh. It stores exceptionally well for months.
Windham County, Connecticut is in USDA Zone 6a. The average last spring frost is April 29 and the first fall frost is October 16, giving you a growing season of approximately 170 days.
At an elevation of 110 feet, Windham County receives approximately 41.6 inches of rainfall annually with predominantly silt loam soil. Summer highs average 85°F, providing good warmth for Butternut Squash during the growing season.
Windham County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Butternut Squash Planting Timeline — Windham County, CT
Butternut Squash Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 25 | Mar 25 – Apr 8 |
| Transplant Outdoors | May 13 | May 13 – May 27 |
| Direct Sow | May 6 | May 6 – May 27 |
| Harvest | August 12 | Aug 12 – Sep 16 |
Plant 1" deep · 30" apart · Rows 42" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | — |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
85–110 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 6a
📆 Growing Season
170 days in Windham County
Growing Tips for Windham County
Start seeds indoors 3 weeks early or direct sow after frost. Allow 6-8 feet for sprawling vines. Harvest when the skin is hard and uniformly tan. Cure in the sun for 10 days.
Companion Planting
Good Companions
Avoid Planting Near
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Butternut Squash in Other Locations
Frequently Asked Questions
When should I plant Butternut Squash in Windham County, CT?
Windham County is in Zone 6a with an average last frost of April 29. Plan your Butternut Squash planting based on this frost date — see the calendar above for exact timing.
What planting zone is Windham County, CT?
Windham County, Connecticut is in USDA Hardiness Zone 6a. The average last spring frost is April 29 and first fall frost is October 16.
When should I plant Butternut Squash in Windham County, CT?
In Windham County, CT, plant Butternut Squash after the last frost (around April 29) and before the first frost (around October 16). Best results when soil holds above 50°F.
What growing zone is Windham County, CT for Butternut Squash?
Windham County sits in USDA Zone 6a. Butternut Squash grows reliably in zones 3a through 11b, so it's a good fit here.
Can Butternut Squash grow in Windham County's climate?
Yes — Butternut Squash grows well in Windham County's temperate climate. Windham County averages a 170-day frost-free season, with last frost around April 29 and first frost around October 16.
Your Windham County Garden Planner — Free
A 22-page printable planner built for Windham 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.