When to Plant Squash (Summer) in Hutchinson County, SD
Summer squash includes zucchini, yellow crookneck, and pattypan varieties that are harvested young and tender. They are prolific producers in warm weather.
Hutchinson County, South Dakota is in USDA Zone 4b. The average last spring frost is May 1 and the first fall frost is October 6, giving you a growing season of approximately 158 days.
At an elevation of 1,008 feet, Hutchinson County receives approximately 32.1 inches of rainfall annually with predominantly loam soil. Summer highs average 83°F, so choose short-season varieties of Squash (Summer) to ensure they mature before fall.
Hutchinson County Soil Profile
Soil Type
Loam
Soil pH
6.5-7.2
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
Squash (Summer) Planting Timeline — Hutchinson County, SD
Squash (Summer) Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 20 | Mar 20 – Apr 3 |
| Transplant Outdoors | May 22 | May 22 – Jun 5 |
| Direct Sow | May 15 | May 15 – Jun 5 |
| Harvest | July 10 | Jul 10 – Sep 11 |
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 | Transplant Outdoors Direct Sow |
| July | Harvest |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
Moderate — regular watering
Days to Maturity
45–65 days
Soil pH
6 – 7.5
USDA Zone
Zone 4b
Growing Season
158 days
Growing Tips for Hutchinson County
Direct sow after last frost on mounds. Harvest frequently when fruits are 6-8 inches for best texture. Check plants daily as they grow rapidly in summer heat.
Companion Planting
Good Companions
Avoid Planting Near
Level Up Your Garden
Squash (Summer) in Other Locations
Frequently Asked Questions
When should I plant Squash (Summer) in Hutchinson County, SD?
Hutchinson County is in Zone 4b with an average last frost of May 1. Plan your Squash (Summer) planting based on this frost date — see the calendar above for exact timing.
What planting zone is Hutchinson County, SD?
Hutchinson County, South Dakota is in USDA Hardiness Zone 4b. The average last spring frost is May 1 and first fall frost is October 6.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Hutchinson County gardeners in Zone 4b organize planting dates, track what's growing, and never miss a planting window.
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