|'Hasse' is a quality cultivar with fine, glossy leaves, smaller than typical. Mature height in the forty to fifty foot range. This evergreen tree has an upright growth habit. Leaves are dark green, leathery, glossy, broadly ovate, to 8 in. long with rust, hairy undersides. Large fragrant flowers are cup-shaped and creamy white with 9-10 petals up to 10 in. across.