When to plant Zucchini in Macomb County, MI
Aim to plant Zucchini in Macomb County on or after May 5; the window stays open through May 26. Macomb County's 175-day frost-free season gives you a single solid spring crop with a brief fall option.
When to Plant Zucchini in Macomb County, MI
Zucchini is an incredibly prolific summer squash that can produce an abundance of fruit from just a few plants. It is versatile in the kitchen from grilling to baking.
Macomb County, Michigan is in USDA Zone 6b. The average last spring frost is April 28 and the first fall frost is October 20, giving you a growing season of approximately 175 days.
At an elevation of 628 feet, Macomb County receives approximately 33.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 91°F, providing good warmth for Zucchini during the growing season.
Macomb County Soil Profile
Soil Type
Silt Loam
Soil pH
6.0-7.0
Drainage
Well Drained
How Much Zucchini to Grow
For a family of 4, plant approximately 4 zucchini plants in about 8 sq ft. In Macomb County's 175-day season, you'll have plenty of time for a full harvest. Plan your garden layout →
Zucchini Planting Timeline — Macomb County, MI
Zucchini Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | March 24 | Mar 24 – Apr 7 |
| Transplant Outdoors | May 12 | May 12 – May 26 |
| Direct Sow | May 5 | May 5 – May 26 |
| Harvest | June 30 | Jun 30 – Aug 25 |
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 | Harvest |
| July | Harvest |
| August | Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
45–60 days
🧪 Soil pH
Needs 6–7.5 · Your soil: N/A
🗺️ USDA Zone
Zone 6b
📆 Growing Season
175 days in Macomb County
Growing Tips for Macomb County
Direct sow after last frost. Harvest when fruits are 6-8 inches long for best flavor and texture. Check plants daily in summer as fruits can double in size overnight.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Zucchini in Other Locations
Frequently Asked Questions
When should I plant Zucchini in Macomb County, MI?
Macomb County is in Zone 6b with an average last frost of April 28. Plan your Zucchini planting based on this frost date — see the calendar above for exact timing.
What planting zone is Macomb County, MI?
Macomb County, Michigan is in USDA Hardiness Zone 6b. The average last spring frost is April 28 and first fall frost is October 20.
When should I plant Zucchini in Macomb County, MI?
In Macomb County, MI, plant Zucchini after the last frost (around April 28) and before the first frost (around October 20). Best results when soil holds above 50°F.
What growing zone is Macomb County, MI for Zucchini?
Macomb County sits in USDA Zone 6b. Zucchini grows reliably in zones 3a through 11b, so it's a good fit here.
Can Zucchini grow in Macomb County's climate?
Yes — Zucchini grows well in Macomb County's temperate climate. Macomb County averages a 175-day frost-free season, with last frost around April 28 and first frost around October 20.
Your Macomb County Garden Planner — Free
A 22-page printable planner built for Macomb 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.