This crab apple is the one of the best trees for small spaces: it doesn’t get too big and has flowers in the spring and fruit in the autumn.  The apples hang in small bunches, like shiny red cherries, but they are tough and taste bitter. There are lots of recipes around for using the fruit but I leave them as winter food for the voracious blackbirds.  The Royal Society for the Protection of Birds recommend crab apples not just because of the fruit but also because the trees are home to over 90 varieties of insect.  I don’t know who did the counting and can’t vouch for the number, but that’s a lot of insects for the birds to eat.