Catalpa bignonioides (southern catalpa) bears showy, multi-coloured white and fragrant blooms during mid spring to early summer. This tree is upright and has greyish lime foliage that is showy, matte, coarse textured and aromatic. The fruit produced by Catalpa bignonioides (southern catalpa) is showy. The bark is fissured in texture. Find a prominent place in your garden for this stunning tree which has been designated a specimen.