Genus Physocarpus Species opulifolius Cultivar 'Monlo' DiaboloÂ® Patent pp# 11211 Common Name DiaboloÂ® Ninebark Zone 2 to 8 Habit Upright with arching branches. Moderate growth rate. Height 10 to 12 Feet Spread 8 to 10 Feet Foliage Purplish red lobed foliage. May become dark green in extreme heat or shade. Deciduous. Flower Pinkish-white flower clusters. May-June. Flower Color White Culture Full sun. Category: Flowering Tree Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on Tumblr (Opens in new window) Description Ours are single-stemmed, tree form plants! Awesome!