Cedar waxwings, robins, bluebirds, catbirds and many other birds love blackhaws blue-black fruits, which persist into winter. In spring, the small tree bears white flowers; in fall, its leaves turn red. Tuck blackhaw almost anywhere-it slowly grows to 15-20 ft. tall and 10 wide. Bare-root plant. 3-year-old (12-18 in. transplants) shipped at the proper planting time for your area. Zones 3-8. ...