When to plant Brussels Sprouts in Calhoun County, MI
Brussels Sprouts planted in Calhoun County between April 16 and May 7 matures in 90–130 days — well before the October 13 first frost. A second sowing from August 4 to August 18 extends the harvest into fall.
When to Plant Brussels Sprouts in Calhoun County, MI
Brussels sprouts are a cold-hardy brassica that produces miniature cabbage-like heads along a tall stalk. Flavor improves after a light frost.
Calhoun County, Michigan is in USDA Zone 6a. The average last spring frost is April 30 and the first fall frost is October 13, giving you a growing season of approximately 166 days.
At an elevation of 1,242 feet, Calhoun County receives approximately 39.5 inches of rainfall annually with predominantly silt loam soil. Summer highs average 83°F, so choose short-season varieties of Brussels Sprouts to ensure they mature before fall.
Calhoun County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Brussels Sprouts Planting Timeline — Calhoun County, MI
Brussels Sprouts Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 26 | Mar 26 – Apr 9 |
| Transplant Outdoors | April 30 | Apr 30 – May 14 |
| Direct Sow | April 16 | Apr 16 – May 7 |
| Harvest | July 30 | Jul 30 – Sep 24 |
| Fall Sowing | August 4 | Aug 4 – Aug 18 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | Start Indoors |
| April | Start Indoors Transplant Outdoors Direct Sow |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | Harvest |
| August | Fall Sowing Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
90–130 days
🧪 Soil pH
Needs 6–7.5 · Your soil: N/A
🗺️ USDA Zone
Zone 6a
📆 Growing Season
166 days in Calhoun County
Growing Tips for Calhoun County
Start seeds indoors 12-14 weeks before first fall frost. Stake tall plants to prevent toppling. Remove lower leaves as sprouts develop to improve air circulation.
Companion Planting
Good Companions
Avoid Planting Near
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Brussels Sprouts in Other Locations
Frequently Asked Questions
When should I plant Brussels Sprouts in Calhoun County, MI?
Calhoun County is in Zone 6a with an average last frost of April 30. Plan your Brussels Sprouts planting based on this frost date — see the calendar above for exact timing.
What planting zone is Calhoun County, MI?
Calhoun County, Michigan is in USDA Hardiness Zone 6a. The average last spring frost is April 30 and first fall frost is October 13.
When should I plant Brussels Sprouts in Calhoun County, MI?
In Calhoun County, MI, plant Brussels Sprouts after the last frost (around April 30) and before the first frost (around October 13). Best results when soil holds above 50°F.
What growing zone is Calhoun County, MI for Brussels Sprouts?
Calhoun County sits in USDA Zone 6a. Brussels Sprouts grows reliably in zones 2a through 10b, so it's a good fit here.
Can Brussels Sprouts grow in Calhoun County's climate?
Yes — Brussels Sprouts grows well in Calhoun County's temperate climate. Calhoun County averages a 166-day frost-free season, with last frost around April 30 and first frost around October 13.
Your Calhoun County Garden Planner — Free
A 22-page printable planner built for Calhoun 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.