Yes, they have Tulips—in May. But there are many more reasons to visit Holland Michigan. 
Lake Michigan for another. Wide downtown sidewalks, great variety of colorful flowers, many unique local and national clothing stores, terrific restaurants, awesome brewery and most recently blueberries. Check out Bowerman’s on 8th for Blueberry donuts, Blueberry hand pies, Blueberry whole pies, 1/2 pies, twists, etc. https://www.realblueberries.com