How to prune Malini columnar apple trees

The online-shop for the original Lubera plants and thousands of more plants: Lubera`s Malini - Columnar apples: Markus Kobelt, the founder and breeder of the Swiss fruit tree nursery Lubera, talks about how to prune a Malini. A Malini is an type of apple tree which is called the columnar type due to its growth habit. Anyway ypu don`t have to do much with this kind of tree. Rule 1: Shorten any branches to 15 or 20 cm. Rule 2: Don`t remove any branch completely. You have to preserve at least 5 cm.