The large scale of the street tree program means we order trees from nurseries one year in advance. For this reason, changing the tree type at planting time is problematic. We aim to select the right tree for the right place. This means we select street trees that can tolerate tough growing conditions and are suitable to coexist with roadside infrastructure. If you prefer trees with a particular flower, foliage, colour, or scent, we encourage planting these types of trees in private gardens.