What zone is Michigan for growing flowers?
In the mitten state of Michigan, planting zones range from the 4s to 6s based on region because Michigan has a continental climate. Although, like several other states, it has two very distinct regions. What Planting Zone Is Michigan In? On the 2023 USDA Plant Hardiness Zone Map, Michigan runs from zone 4a to zone 6b, based on 30-year averages of the coldest winter temperatures (1991–2020).What USDA growing zones is Michigan in? Michigan spans USDA zones 4a–6b on the 2023 hardiness map. The Upper Peninsula and far northern Lower Peninsula fall into zones 4a–5a, while central Michigan ranges 5a–6a. The warmest areas—Detroit, Ann Arbor, and the Lake Michigan fruit belt—are zones 6a–6b.
When to plant flowers outside in Michigan?
Mid-May is generally the time to begin planting things in the garden, but temperatures and precipitation can vary from year to year. Typically, the safe window for planting annuals begins around mid-to-late May, once overnight temperatures consistently stay above 50. Planting too early, even if the days are warm, can stress young plants and stunt their growth, especially if a late frost rolls in.