Vigorous, long-flowering vine with double blooms.5-inch, semi-double blue flowers blanket this perennial vine from early summer into fall.  The stunning blooms feature blue outer petals with a central green-hued stamen.  The delicate stamen is bordered by a lighter shade of fine petals that radiate out in a “fountain” effect. Clematis Crystal Fountain is a vigorous grower that is sure to impress you.  Whether you leave it to climb, crawl, or plant one in a patio container, this is a Clematis that’s sure to produce a spectacular show in your yard.* Amazing blue flowers all summer* Versatile uses* Works well in containers* Wildlife interest* Adaptive to a variety of soilsPruning & Training Clematis.