Blue Flax-lily

Blue flax-lily is an evergreen Dianella with green, strap-shaped leaves and sprays of blue to purple star-shaped flowers. It brings a fine-textured, arching foliage accent to small gardens and other partly shaded plantings where well-drained soil and moderate moisture are available. ### Foliage and flowers The [NParks Flora & Fauna Web profile](https://www.nparks.gov.sg/florafaunaweb/flora/1/9/1928) identifies Dianella caerulea as an Australian species and describes a herbaceous perennial growing to about 1 metre tall. It reports blue-to-indigo fruit and blue or purple flowers with yellow stamens, as well as evergreen foliage. Its reported height of about 1 metre gives a useful guide to its mature garden scale. ### Growing conditions The NParks profile lists semi-shade, moderate watering, and moist, well-drained soils among its preferences. The species occurs in coastal shrubland, sandy ground, open forest, and woodland, so it can be used in a sheltered garden border or a small planting with similar conditions. Avoid assuming that every Dianella has the same fruit or growth traits; this description is specific to D. caerulea. ## Maintenance Water during extended dry periods and remove damaged leaves to keep the foliage neat. Clumps may be divided for propagation where space allows.