I have one that's got too tall and spindly so all the growth is at the top. Can I cut the main trunk down to about a foot? Will it regrow?
They are fully hardy and will prefer full sun, they are suitable for almost all situations and may be grown in any but very wet soil.
You can propagate the species by seeds in the autumn, the cultivars by budding in late summer.
Pests, diseases or disorders
Fireblight is sometimes a problem. Honey fungus rust.