It is derived from P. insitia plum. The most significant types of this rootstock are Saint Julien A and Saint Julien 655/2 which are semi-dwarf. It is not suitable for heavy textured soil. It can also be used as rootstock for peaches, nectarines and apricots as well as plums. It has positive effect on productivity of the variety on it. It is not resistant to severe cold; and it is recommended to be used in well-drained soil. It is resistant to Phytoptohora and bacterial cancer. It is commonly used in Britain and Iber peninsula.