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Long-blooming in a penetrating shade of violet, G. psilostemon has a riveting black center eye and nicely dissected leaves that can grow six - eight inches wide; traffic-stopping and weed-smothering — what's not to like? One of the largest geraniums we grow; this plant appreciates neighbors to lean on.
Mature size: 2.5-4 ft T x 3-4 ft W
Clump forming
Minimum temperature: -30° F
Properties/conditions: