Many festivals and activities celebrate Spring in west Michigan
Spring events near Kalamazoo
March 1- April 30 Butterflies are Blooming at Meijer Gardens Grand Rapids
April 16-24, National Park Week
April 23 Green-A-Thon 2016 Celery Flats Portage
April 30 Thornapple Woodpecker Festival Middleville
April 30- May1 Victorian Days Grand Ledge
May 7 Blossomtime Grand Floral Parade 1pm St Joseph - Benton Harbor
May 7-14 Tulip Time festival Holland
May 14 & 21 Lees' Kayak & Canoe Demo day Kalamazoo
May 14-21 Kalamazoo Bike Week Kalamazoo
May 17 Kalamazoo Bicycle Film Festival at Bell's in Kalamazoo
May 21-22 Great Lakes Kite Festival 2016 Grand Haven
May 28 Kalamazoo Area Wild Ones 3rd Annuak Native Plant Sale People's Food Co-op Kalamazoo
Also consider:
Vegetable planting dates
Earth Day Activities throughout Michigan
Bike Friendly Kalamazoo's Event listings
Battle Creek Cleanwater Events
Tawas Point Birding Festival Iosco County May 19–22
birdwatching at Bird Trails and Sanctuaries in Michigan
Discover Kalamazoo's event listing
Monthly Events Roundup from Pure Michigan
Gazelle Sports Races and running calendar
League of Michigan Bicyclists Michigan Bicycling Calendar
Michigan Festivals and Events Association Events browser
The DNR has calendars of events for State Parks and Recreation Areas.
Sarrett Nature Center's Event list Benton Harbor
Spring weekend getaways