When to plant Broccoli in Alcona County, MI
Alcona County sits in USDA Zone 5b. Plant Broccoli between May 3 (after last frost on May 17) and May 24. A second sowing from July 25 to August 8 extends the harvest into fall.
When to Plant Broccoli in Alcona County, MI
Broccoli is a nutrient-dense cool-season crop that produces large central heads followed by smaller side shoots. It is one of the most popular garden vegetables.
Alcona County, Michigan is in USDA Zone 5b. The average last spring frost is May 17 and the first fall frost is October 3, giving you a growing season of approximately 139 days.
At an elevation of 1,061 feet, Alcona County receives approximately 39 inches of rainfall annually with predominantly silt loam soil. Summer highs average 86°F, providing good warmth for Broccoli during the growing season.
Alcona County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
How Much Broccoli to Grow
For a family of 4, plant approximately 12 broccoli plants in about 24 sq ft. In Alcona County's 139-day season, you'll have plenty of time for a full harvest. Plan your garden layout →
Broccoli Planting Timeline — Alcona County, MI
Broccoli Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | April 12 | Apr 12 – Apr 26 |
| Transplant Outdoors | May 17 | May 17 – May 31 |
| Direct Sow | May 3 | May 3 – May 24 |
| Harvest | July 19 | Jul 19 – Aug 30 |
| Fall Sowing | July 25 | Jul 25 – Aug 8 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Start Indoors |
| May | Transplant Outdoors Direct Sow |
| June | — |
| July | Fall Sowing Harvest |
| August | Fall Sowing Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
60–90 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 5b
📆 Growing Season
139 days in Alcona County
Growing Tips for Alcona County
Start seeds indoors 6-8 weeks before last frost. Provide consistent moisture to prevent hollow stems. Harvest heads before yellow flowers appear.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Isolate 1/2 mile from other brassicas. Biennial — must overwinter roots.
Broccoli in Other Locations
Frequently Asked Questions
When should I plant Broccoli in Alcona County, MI?
Alcona County is in Zone 5b with an average last frost of May 17. Plan your Broccoli planting based on this frost date — see the calendar above for exact timing.
What planting zone is Alcona County, MI?
Alcona County, Michigan is in USDA Hardiness Zone 5b. The average last spring frost is May 17 and first fall frost is October 3.
When should I plant Broccoli in Alcona County, MI?
In Alcona County, MI, plant Broccoli after the last frost (around May 17) and before the first frost (around October 3). Best results when soil holds above 50°F.
What growing zone is Alcona County, MI for Broccoli?
Alcona County sits in USDA Zone 5b. Broccoli grows reliably in zones 2a through 11b, so it's a good fit here.
Can Broccoli grow in Alcona County's climate?
Yes — Broccoli grows well in Alcona County's temperate climate. Alcona County averages a 139-day frost-free season, with last frost around May 17 and first frost around October 3.
Your Alcona County Garden Planner — Free
A 22-page printable planner built for Alcona County (Zone 5b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.