Tall annual or weakly perennial herb that grows up to 1.2-2 m tall. Sow seed every year to have new plants establishing and flowering. It is a soft upright shrub grown in shade and sun with sky blue flowers that attract butterflies.
Sow seeds in Spring.
Make 10-15cm cuttings after flower(Autumn) or when the growing season start(Spring). They root easily in a sandy soil mix.