A dark green, wrinkled-leaved, spreading, evergreen shrub with tightly clustered heads of vanilla-fragrant flowers of purply/blue.
This is a lovely, cottage garden plant that will leave the air heavy with scent at nightfall.
Attractive to butterflies.
"Lord Roberts" has purple tinted leaves and deep light violet-blue flowers, and has a more compact habit.
All parts of this plant are poisonous.