1 Perennial Starter of Alcea Rosea - Hollyhock Country Mix. Stately Tall Cottage Garden Favorite! Hollyhock grows a stately 4-6' tall, the top third of its stems filled with large single blooms in brilliant colors. Towering above 18"-wide mounds of basal foliage, It create a vertical accent by a sunny wall or fence, or the back of the border Very easy to grow, but bloom best in rich soil, with water in dry spells. The bright flowers attract bees, butterflies and hummingbirds Drought Tolerant.