What rootstock is best for grafting Cupressaceae tree species?

    Cupressaceae tree species usually use Chinese arborvitae (Platycladus orientalis) or Chinese juniper (Juniperus chinensis, formerly known as round juniper) as the rootstock. Ornamental cypresses such as dragon juniper, Taiwan incense cedar, and golden cypress are used as scions and grafted onto them. Grafting is done in spring between March and April, when the rootstock sap is flowing and the scion sap is about to flow. The rootstock is a three-year-old seedling of Chinese arborvitae, and the scion is a vigorous branch from the previous year, about 15 cm long. The cut-grafting method is usually used, with routine operation, and the survival rate is high.