The Prairie Horizon� Alder, Alnus hirsuta 'Harbin', is an attractive, rapid growing tree for dry difficult sites. Decorative purple catkins in spring are followed by tiny pine cones in the fall, and are favored by birds. The bark is gray and beech-like. Its purple catkins and clusters of brown, cone-like strobiles add interest to the tree during winter. Prairie Horizon is easily grown in well-drained soil in full sun to part shade. Once established, this plant is drought tolerant, so it will do well in difficult and dry areas. It is an ideal specimen tree for drier locations and mulching is recommended. Selected by the NDSU breeding program.

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