The Purple Catalpa makes a grand, showy display each spring, as huge new leaves of dark purple emerge. Flowers cover the treetop with large panicles of white blooms dotted with yellow and purple specks while foliage begins to turn its summer coloring of bronzy green. In autumn, leaves turn yellow. Tree grows 45' tall by 40' wide, with a rounded canopy. Hardy to zone 5. Want something different from your neighbors' yards? This may be the tree for you!