When Do Clematis Bloom?
There are a huge number of clematis species, all with slightly different blooming idiosyncrasies. Some clematis bloom times are in the spring, some in summer, some in autumn, and some are continuous through multiple seasons. Some clematis also have two distinct blooming periods. Even if you do plant a specific variety for its bloom time, sunlight, USDA zone, and soil quality can cause it to deviate from your expectations. There are some basic guidelines, however. Spring-blooming clematis species include:
alpina armandii cirrhosa macropetala montana
Summer-blooming and fall-flowering clematis include the following species:
crispa x durandii heracleifolia integrifolia orientalis recta tangutica terniflora texensis viticella
The florida species blooms once in the spring, stops producing, then blooms again in the autumn.
Blooming Season for Clematis
Blooming season for clematis can be extended if you plant the right variety. Some specific cultivars have been bred to bloom continuously through the summer and fall. These hybrid clematis include:
Allanah Gypsy Queen Jackmanii Star of India Ville de Lyon Polish Spirit Red Cardinal Comtesse de Bouchard
Planting one of these is a good way to ensure clematis vine flowering for an extended period of time. Another good strategy is to overlap multiple varieties. Even if you can’t exactly pinpoint your clematis bloom times, planting a spring variety near summer and fall varieties should make for continuous flowering throughout the growing season.
