Cassandra tube clematis
Clematis heracleifolia 'Cassandra'
RHS AGM 2016
USDA zones3 to 8
Sizeup to 3.5 feet tall
- Habit
- Bushy
- Bloom season
- Summer, autumn
- Bloom color
- Deep blue
Notes
'Cassandra' tube clematis (Clematis heracleifolia 'Cassandra') is a perennial with a bushy habit. It is hardy to USDA zone 3, or down to -40°F (-40°C). Deep blue flowers open from mid summer to early autumn. The blooms are fragrant, so plant it near a path or seating area. This clematis reaches up to 39 inches tall.
Pairs well with Siebold's hosta, Panicle hydrangea, and Blue grama.