I have two Rowan trees in the garden and rarely get any blooms on them so imagine my surprise when I noticed red berries today. They are on the tree that is about 13 years old whereas the tree that is about 25 years old just doesn't bother.
We had one in our garden, but hubby removed it for his raised beds. We planted another couple, but it'll be a while before they produce any blooms or berries!