Clematis occidentalis Grosseserrata
US native Small Flowered Species
Full Sun, Partial Shade
Zones 3 to 9
Grows 3 to 4 feet

(AKA Clematis verticillaris) Clematis occidentalis grosseserrata hails from the western half of the US and Canada where it enjoys good drainage and tolerates extremely cold temperatures. The blue-veined on pale blue flowers bloom in spring on old wood and are sometimes 3 inches long on this variety of the species. This is a fine native alternative for Clematis alpina. Pruning: 1