I have a Nyssa Sylvatica (Black gum) tree I purchased and planted 5 years ago thinking I would get amazing fall color in my Connecticut zone 6b garden. Instead, the leaves stay on the tree very late into the fall (generally two to three weeks past Thanksgiving) and then turn brown and eventually fall off sometime in later December. I have never seen any of the stunning fall color that I see in marketing photos for this tree. Have you had have a different experience with this tree? Mine was reported as the cultivar "Wildfire." It is planted in full sun in fertile soil on flat ground.