There's a 9-foot cactus in a bathtub- & that's just the beginning - Buffalo-NiagaraGardening.com
You don't see many cactuses in outdoor gardens in the Buffalo, NY area, but gardeners in suburban Tonawanda have nurtured this pair of nine-foot cactuses. The original plant dates back to 1955. The gardeners bring the plants in each winter. See the article for more details.