Petalidium oblongifolium is a beautiful small shrub that can be grown in full sun or semi-shade. It has very long flowering season starting in spring. The large blue flowers are very similar to Barleria.
Trim Petalidium oblongifolium back late in the season to retain the shape. A beautiful addition to any landscape and it is very hardy as well.
You may find stock of this plant at Random Harvest.