This is a nice hidden treasure of Cleveland that reminds me of Cleveland's opulence of the early 20th Century.
Built in the first half of the 20th century, the Greenhouse doesn't have any new technology or new plants. There's even an old stone bust of Johanns Strauss (I cannot explain why). There's a couple displays that were likely once ponds but have been filled with assorted plants. Only one pond with 3 lowly fish remains. During our visit, I was surprised that we did not see one employee or any sign that there was one there.
In spite of these critiques, it has had maintenance over the years, it's free, and didn't have any crowds. During Christmas time, they had lovely poinsettias and themed Christmas displays. Although the greenhouse itself was last renovated before I was born, the bathrooms and lobby was were renovated in 2002.
Although I wasn't very impressed and we saw everything indoors at a leisurely pace within 35 minutes, I'll return to check it out in the spring or summer and visit the adjacent outdoor gazebo and small garden and the park across the street.
A very high 3 stars. Don't go if you're only going to visit this but definitely stop by if you're making a trip to Asiatown, University Circle, or the Cultural Gardens.