Kitaibelia vitifolia

Perennials that provide not only flowers but also architectural structure are always welcome in the border.  Grape-leaved mallow does both quite admirably, forming lusty clumps of tall stems clad in bold maple-like leaves that make an excellent foil to white mallow-flowers that appear in early summer. 

Full sun to light shade; average to moist, well-drained soil; 6'x4'; summer; Zone 5

Propagated from seed; deep 3.5-inch pots