Our house was new when we moved into it 16 years ago. The back garden was completely barren and looked like a building site which I suppose it was. One of the first things to be planted was a crab apple (Malus "John Downie").
This is a perfect tree for a small garden. It is decorative as well as useful. This is how it looked in April this year.
Every spring it is covered in masses of white blossom and now it is laden with beautifully coloured crab apples.
I will be picking these in a day or two, if it stops raining, and making crab apple jelly.