Sianpuolikka Arctostaphylos uva-ursi -- Bearberry. This low growing shrub is often used as a native groundcover on dry, sandy and rocky soils, in full sun to light shade. Grows naturally on sandy beaches and dry, open woodlands in sandy soil. The plants spread gradually by surface rhizomes to form a mat. Requires an acid soil with a pH between 4.0 and 6.0.