Cistus populifolius subsp. major
Common name(s): rockrose
Description: evergreen shrub; a subspecies defined by large, wavy-edged leaves. Vigorous upright growth with large, poplar-like leaves and white flowers (6.5 cm.) from spring into summer. Generally quite hardy.
Height: to 6 ft. Spread: to 4 ft.
Position: full sun and lean, well-draining soil
Uses: ornamental
Winter Hardiness: to 5 F and below
Drought: adapted to 4.5 months of summer drought
Distribution: Morocco, Portugal, S. Spain
Care: tip-pruning after flowering (especially in the first couple of years) will result in a more attractive, compact plant. Cistus generally won't tolerate or regenerate from hard pruning of older, woody growth.