Step through the doors of an 85-foot glass dome in the middle of the Detroit River and you land somewhere that feels nothing like Michigan. Palm fronds brush the glass overhead, koi glide beneath lily pads, and the air turns thick and warm no matter what the forecast says outside. This is the Anna Scripps Whitcomb Conservatory, sitting at the heart of Belle Isle Park, and it has been quietly doing this exact trick for well over a century.
Opened in 1904 and now recognized as the oldest continuously operating conservatory in the country, the building was designed by architect Albert Kahn, who reportedly drew inspiration from Thomas Jefferson’s Monticello for its central rotunda. After a two-year, $10 million renovation, it reopened to the public in December 2024 with its historic bones intact and its greenhouses freshly restored.
What You’ll See Inside
The domed Palm House is the showstopper, a soaring rotunda kept around 70 degrees and filled with towering Chinese fan palms and Canary Island date palms. It’s the kind of space that makes you stop and crane your neck upward the second you walk in, especially with sunlight pouring through the glass overhead.
The orchid collection is what really sets this place apart. In 1955, Anna Scripps Whitcomb, daughter of Detroit News founder James E. Scripps, donated her personal collection of roughly 600 orchids to the city, many of which had originally been rescued from Britain during World War II. That gift gave Detroit the largest municipally owned orchid collection in the country, and descendants of those original plants still bloom in rotating displays today.
Beyond the palms and orchids, the conservatory branches into several distinct climate zones worth wandering through slowly. The Fernery sits in a sunken, humid pocket built around a small waterfall, the Cactus House stays cooler and drier with succulents growing among tufa rock, and the Tropical House holds fig trees and other fruiting plants that feel plucked from a rainforest. A separate Show House rotates seasonal floral displays, so the conservatory rarely looks the same on two different visits.
Just outside the Palm House, the lily pond adds another quiet highlight. Built from limestone boulders back in 1936, it’s stocked with Japanese koi and framed by lily pads that make for one of the more peaceful photo spots on the island.
Atmosphere & Setting
Everything about the experience is unhurried. There’s no rush of crowds pushing you through, and the winding paths between greenhouse sections practically beg you to slow down and take it in one room at a time. The humidity and warmth inside make it a particularly welcome escape during a gray Michigan winter, when the contrast between the frozen island outside and the tropical air inside feels almost disorienting in the best way.
The building itself carries real weight of history, from its early 1900s styling to the dome’s iron and aluminum framework installed decades later. Restoration work has kept that historic character while modernizing the greenhouse systems behind the scenes, so the place looks and feels cared for rather than dated.
Its setting only adds to the appeal. Belle Isle Park wraps around the conservatory with river views and walking paths, plus the nearby Belle Isle Aquarium, making it easy to turn a visit into a full afternoon outdoors before or after you duck inside for the greenery.
Other Considerations
How much does it cost? Admission to the conservatory itself is free. You will need a Michigan Recreation Passport to bring a vehicle onto Belle Isle, which runs $16 for a day pass if it’s not already included with your license plate registration.
What are the hours? The conservatory is open Wednesday through Sunday from 10 a.m. to 5 p.m., and it’s closed Mondays and Tuesdays.
Is it good for kids? Yes, the mix of koi ponds, towering palms, and cacti gives younger visitors plenty to point at, and the paved paths make strollers easy to manage.
How much time should I plan for? Most people move through all five sections in under an hour, though plant lovers and photographers tend to linger longer, especially around the orchid displays and lily pond.
Anna Scripps Whitcomb Conservatory
📍 4 Inselruhe Ave, Detroit, MI 48207
Website: https://www.belleisleconservancy.org
