Why don't Chinese rose buy old piles?

In fact, it's not that I can't buy the old pile of China roses, but that most online sellers are eliminated by producing cut flowers in greenhouses, so the old pile has experienced a lot of hormone stimulation, and its activity will become very low. After buying home, not only the survival rate is low, but also the vitality of later growth is very poor. In addition, it is difficult to adjust the plant type, and the flowering ability is not very strong during maintenance.