Introduced by the University of Minnesota, Malus ‘Radiant’ is a flowering crabapple with a number of appealing traits. First, the tree matures anywhere from 15 to 30 feet in height and spread. Next, it is covered in deep red-pink blooms that emerge from red buds. Plus, when the leaves emerge, their hue is a sort of red-purple that later matures into green. Nestled among those green leaves are half-inch red crabapples, which persist into winter, making them a steady food source for birds. Oh, and it is hardy down to Zone 4.