These "classic" wintergrafts are grafted on Canina Inermis understock, but compared to the other types of young plants are these without a plug or pot. They will be delivered with a pinch of ca. 2-3 cm, that's why they need at most only 3 weeks in the propagation.
These wintergrafts should be planted in greenhouses, also in cold houses (free of frost) possible. There, these young plants had to be covered with a mat of fibres in the first time, to protect the sensitive shoots .