TENDER An eyecatching hybrid with masses of racemes of purple calyces and white flowers flushed with pale lavender. May be worth trying outside in a warm sunny, sheltered garden but overwinter frost free to be safe. 50cm.
A bushy upright subshrub. Evergreen in a sheltered site, with spikes of blue-purple and white flowers in summer to 60cm. New to us so not sure on hardiness but it survived -16 with minimal protection!
Tidy clumps of showy powder blue-grey leaves to 25cm and short spikes of flowers a little taller. Evergreen and tough. Best in drained soil in full sun.