When to plant Butternut Squash in Johnson County, IN
For Butternut Squash in Johnson County, the safe spring window opens around April 19 and closes around May 10. Last expected frost is April 12, first fall frost October 22, giving a 193-day growing season.
When to Plant Butternut Squash in Johnson County, IN
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.
Johnson County, Indiana is in USDA Zone 6a. The average last spring frost is April 12 and the first fall frost is October 22, giving you a growing season of approximately 193 days.
At an elevation of 1,324 feet, Johnson County receives approximately 36.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Butternut Squash during the growing season.
Johnson County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Butternut Squash Planting Timeline — Johnson County, IN
Butternut Squash Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 8 | Mar 8 – Mar 22 |
| Transplant Outdoors | April 26 | Apr 26 – May 10 |
| Direct Sow | April 19 | Apr 19 – May 10 |
| Harvest | July 26 | Jul 26 – Aug 30 |
Plant 1" deep · 30" apart · Rows 42" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Transplant Outdoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | Harvest |
| August | Harvest |
| September | — |
| 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
193 days in Johnson County
Growing Tips for Johnson 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
Check more plant combinations with our Companion Planting Checker →
Butternut Squash in Other Locations
Frequently Asked Questions
When should I plant Butternut Squash in Johnson County, IN?
Johnson County is in Zone 6a with an average last frost of April 12. Plan your Butternut Squash planting based on this frost date — see the calendar above for exact timing.
What planting zone is Johnson County, IN?
Johnson County, Indiana is in USDA Hardiness Zone 6a. The average last spring frost is April 12 and first fall frost is October 22.
When should I plant Butternut Squash in Johnson County, IN?
In Johnson County, IN, plant Butternut Squash after the last frost (around April 12) and before the first frost (around October 22). Best results when soil holds above 50°F.
What growing zone is Johnson County, IN for Butternut Squash?
Johnson 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 Johnson County's climate?
Yes — Butternut Squash grows well in Johnson County's temperate climate. Johnson County averages a 193-day frost-free season, with last frost around April 12 and first frost around October 22.
Your Johnson County Garden Planner — Free
A 22-page printable planner built for Johnson 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.