The listing, clematis 15+ has ended.
Clematis seeds may take up to three years to germinate, but you should get some germination in about six months to a year. Some clematis will establish very quickly and flower within a year of planting. Others take a little longer, but they're worth the wait! The long flowering season begins with the compact alpinas and macropetalas in early spring, progresses through early summer with the large-flowered hybrids, continues through late summer. Clematis is undoubtedly the most versatile vine you can grow.