The Buffalo and Erie County Botanical Gardens are gearing up for the holidays. The whole family can marvel at the colorful, massive displays at Poinsettias: Expect the Unexpected to be held from 10 a.m. to 5 p.m. Friday, Nov. 25 to Sunday, Jan. 8 at the Buffalo and Erie County Botanical Gardens, 2655 South Park Avenue, Buffalo. This cheerful exhibit includes more than 1,000 beautiful poinsettias, representing more than 100 different cultivated varieties in a spectrum of colors. Poinsettias are native…