Our full size apple and crabapple trees are done blooming, leaving two tiny trees in full flowering glory, one in the back garden and one in the front. In place of the Washington Hawthorne that came down a couple of winters ago in the back of the garden, we put in a Mountain Silverbell (Halesia monticola) in May of 2013. It has come through two difficult winters with flying colors. Small as it is, it is covered in the flower bells that give it its name. We have a sixteen-year-old Silverbell so we know what a beauty this little tree will be when it grows up.
Our Tina crabapple (Malus sargentii 'Tina') has pink buds that open to this profusion of white flowers. This is a grafted dwarf that matures at 5 feet which is pretty much where 'Tina' is at — having been planted in 2000. Have never had a problem with this little charmer and highly recommend her.