When to plant Butternut Squash in Johnson County, MO
Johnson County gardeners should plant Butternut Squash between April 20 and May 11 in spring. With Johnson County's Zone 6b climate (last frost April 13), Butternut Squash needs 85–110 days to mature — plant by July 5 for a full harvest.
When to Plant Butternut Squash in Johnson County, MO
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, Missouri is in USDA Zone 6b. The average last spring frost is April 13 and the first fall frost is October 23, giving you a growing season of approximately 193 days.
At an elevation of 1,218 feet, Johnson County receives approximately 41 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°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, MO
Butternut Squash Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 9 | Mar 9 – Mar 23 |
| Transplant Outdoors | April 27 | Apr 27 – May 11 |
| Direct Sow | April 20 | Apr 20 – May 11 |
| Harvest | July 27 | Jul 27 – Aug 31 |
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 6b
📆 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
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Butternut Squash in Other Locations
Frequently Asked Questions
When should I plant Butternut Squash in Johnson County, MO?
Johnson County is in Zone 6b with an average last frost of April 13. Plan your Butternut Squash planting based on this frost date — see the calendar above for exact timing.
What planting zone is Johnson County, MO?
Johnson County, Missouri is in USDA Hardiness Zone 6b. The average last spring frost is April 13 and first fall frost is October 23.
When should I plant Butternut Squash in Johnson County, MO?
In Johnson County, MO, plant Butternut Squash after the last frost (around April 13) and before the first frost (around October 23). Best results when soil holds above 50°F.
What growing zone is Johnson County, MO for Butternut Squash?
Johnson County sits in USDA Zone 6b. 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 13 and first frost around October 23.
Your Johnson County Garden Planner — Free
A 22-page printable planner built for Johnson County (Zone 6b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.