Posted: 01/06/2013 at 02:18
Roses can grow in a variety of ways. They can grow from seed, cuttings etc. just like any other shrub. Cuttings will be true but seed will always be variable as most garden roses today are hybrids. The rootstock is used for consistency and also to establish the size of rose. For commercial purposes growers need consistent quality and grafting onto a root stock is the only way to ensure this but ordinary cuttings should grow well for us gardeners.