The round shape is typically Tuscan, from the area of Lucca, and was born from the need of winter care. It is achieved by putting supports along the pot’s edges, their number and dimensions varying according to the result that has to be obtained. The supports are then connected with iron circles of increasing dimensions, as the tree grows. The tree’s branches are then tied to the circles, by pulling them out of the frame. As the tree grows, it is better to tie the branches to the frame, rather than to prune the plant.
Every time the pot is changed, the frame must be changed as well with a bigger one, until the tree reaches the chosen dimension.
One of the reasons why this form is very popular is that it favours a very early fructification. This is due to the fact that branches are constantly bended, so they can bear more fruits: in fact, a vertical branch usually bears less fruits than a drooping one, because in the latter sap collection is fostered and, as a consequence, the fruit buds grow in size.