We have purchased quite a few of these trees over the past few years due to issues with neighbors and the desire to have FAST privacy. I can say that the initial trees from 3 years ago are probably 15 - 20 feet tall. The new ones from last fall are taking off now with spring. I would highly recommend to anyone. We also have several of the Nellie Stevens Holly and they are taking off now too and were just planted in the fall. I wonder if the reviewer who only has 6-8 ft trees has a different variety than these?