Colt was developed at the East Malling Research Station in Kent and released in 1977. It is a cross between the sweet cherry Prunus avium and a related but less vigorous species Prunus pseudocerasus. It was the first dwarfing rootstock for sweet cherries, making it possible to grow a cherry tree in a small garden.
Colt produces a tree to around 4.5m, and tolerates poorer soils. Colt is roughly comparable to the apple MM111 rootstock.
*Plant growth is always influenced by climate, nutrition, water availability, scion vigour, etc, so height figures are always only a guide.
