When to plant Squash (Winter) in Bremer County, IA
Bremer County sits in USDA Zone 5a. Plant Squash (Winter) between May 7 (after last frost on April 30) and May 28.
When to Plant Squash (Winter) in Bremer County, IA
Winter squash includes butternut, acorn, delicata, and hubbard varieties grown to full maturity with hard rinds for storage. They develop sweet, dense flesh.
Bremer County, Iowa is in USDA Zone 5a. The average last spring frost is April 30 and the first fall frost is October 7, giving you a growing season of approximately 160 days.
At an elevation of 913 feet, Bremer County receives approximately 33.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83°F, so choose short-season varieties of Squash (Winter) to ensure they mature before fall.
Bremer County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Squash (Winter) Planting Timeline — Bremer County, IA
Squash (Winter) Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 26 | Mar 26 – Apr 9 |
| Transplant Outdoors | May 14 | May 14 – May 28 |
| Direct Sow | May 7 | May 7 – May 28 |
| Harvest | August 6 | Aug 6 – Oct 1 |
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 | Harvest |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
80–120 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 5a
📆 Growing Season
160 days in Bremer County
Growing Tips for Bremer County
Direct sow after last frost on rich mounds. Allow ample space for sprawling vines. Cure harvested fruits in the sun for 10 days before storing in a cool, dry place.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Squash (Winter) in Other Locations
Frequently Asked Questions
When should I plant Squash (Winter) in Bremer County, IA?
Bremer County is in Zone 5a with an average last frost of April 30. Plan your Squash (Winter) planting based on this frost date — see the calendar above for exact timing.
What planting zone is Bremer County, IA?
Bremer County, Iowa is in USDA Hardiness Zone 5a. The average last spring frost is April 30 and first fall frost is October 7.
When should I plant Squash (Winter) in Bremer County, IA?
In Bremer County, IA, plant Squash (Winter) after the last frost (around April 30) and before the first frost (around October 7). Best results when soil holds above 50°F.
What growing zone is Bremer County, IA for Squash (Winter)?
Bremer County sits in USDA Zone 5a. Squash (Winter) grows reliably in zones 3a through 11b, so it's a good fit here.
Can Squash (Winter) grow in Bremer County's climate?
Yes — Squash (Winter) grows well in Bremer County's temperate climate. Bremer County averages a 160-day frost-free season, with last frost around April 30 and first frost around October 7.
Your Bremer County Garden Planner — Free
A 22-page printable planner built for Bremer County (Zone 5a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.