|'Silver Knight' pairs mulberry flowers to silvery-grey foliage which takes on a lavender flush in winter.A densely branched, mat-forming evergreen ground cover with long clusters abundant, showy white or pink urn-shaped flowers into fall. Rich green summer foliage turns bronze-green in winter. Ideal for rock gardens or along walkways. The only true Scotch heather. Beware: dogs seem to favor Scotch heather as much as fire hydrants.