|Alta is a nice magnolia with glossy, deep-green leaves and an upright form. Alta will reach as high as twenty feet at maturity. This evergreen tree has a broadly conical growth habit. Leaves are dark green, leathery, glossy, broadly ovate, to 8 inches long with rusty, hairy undersides. Large fragrant flowers are cup-shaped and creamy white with 9 to 10 petals up to 10 inches across.