Native to Iran. Slow growing to 15–35 ft. tall and wide; naturally multistemmed but can be trained to a single trunk. Oval, 3–6-in.-long leaves have wavy margins; the upper half is shallowly toothed. Choice, colorful tree, attractive in all seasons. The most dramatic display comes in autumn: leaves usually turn golden yellow, then orange or rosy pink, and finally scarlet. Smooth gray bark flakes off to reveal white patches; showy when on display in winter. Dense clusters of tiny flowers with red stamens and woolly brown bracts appear in late winter or early spring before leaves open; they give the plant an overall reddish haze. New foliage unfurls reddish purple, matures to lustrous dark green. Prefers slightly acid soil but tolerates alkaline soil.
Has larger, more deeply colored flowers than the species. Reblooms in late summer.
Best known of several selections is ‘Sulphureum’, 12–20 in. tall, with light yellow ...
From China, Korea, and Japan. This deciduous epimedium grows to about 1 ft. high. Relatively large blo...