Short-lived in the garden. Otocanthus - Warm climate small to medium plant with blue and white flowers through most warm months of the year. Paulownia - Very fast growing deciduous tree to 8m with bluish flowers in spring. New growth may be initially pinkish-bronze in colour. Adaptable to a wide variety of conditions.
Yellow flowers autumn to spring.
Very popular with landscape designers. Grows best in shade. It is suited to uses such as cottage gardens, perennial beds, as a border plant. There are many conifers with bluish foliage. Some can grow very large, others are dwarf.