These are trees which have a 180cm or longer clear trunk and then the tops are trained to form a flat top or roof. They are useful if you need to create shade for sitting under, or just as a architectural feature in the garden. They can be grown in large pots if you want to use them on a terrace, or can be planted direct into the ground.
Several varities of trees are available as flat tops, for example, morus , platanus, malus crab apple and parrotia.
Here are some example prices, but please ask for a quote before ordering.