When to Plant Thyme in Muskegon County, MI
Thyme is a low-growing perennial herb with tiny, aromatic leaves and a warm, earthy flavor. It is one of the most versatile culinary and medicinal herbs.
Muskegon County, Michigan is in USDA Zone 5b. The average last spring frost is May 12 and the first fall frost is October 9, giving you a growing season of approximately 150 days.
At an elevation of 518 feet, Muskegon County receives approximately 34.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84°F, so choose short-season varieties of Thyme to ensure they mature before fall.
Muskegon County Soil Profile
Soil Type
Silt Loam
Soil pH
6.2-7.2
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
Thyme Planting Timeline — Muskegon County, MI
Thyme Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | May 19 | May 19 – Jun 2 |
| Harvest | July 28 | Jul 28 – Sep 29 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | Transplant Outdoors |
| June | Transplant Outdoors |
| July | Harvest |
| August | Harvest |
| September | Harvest |
| October | — |
| November | — |
| December | — |
Growing Conditions
Sun
Full Sun (6-8+ hours)
Water
Low — drought tolerant
Days to Maturity
70–90 days
Soil pH
6 – 8
USDA Zone
Zone 5b
Growing Season
150 days
Growing Tips for Muskegon County
Start from seed, cuttings, or divisions. Plant in well-drained, lean soil. Prune lightly after flowering. Replace plants every 3-4 years when they become woody.
Companion Planting
Good Companions
Level Up Your Garden
Thyme in Other Locations
Frequently Asked Questions
When should I plant Thyme in Muskegon County, MI?
Muskegon County is in Zone 5b with an average last frost of May 12. Plan your Thyme planting based on this frost date — see the calendar above for exact timing.
What planting zone is Muskegon County, MI?
Muskegon County, Michigan is in USDA Hardiness Zone 5b. The average last spring frost is May 12 and first fall frost is October 9.
Plan Your Garden with Confidence
Get our free Garden Planner — designed to help Muskegon County gardeners in Zone 5b organize planting dates, track what's growing, and never miss a planting window.
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