About
An evergreen, perennial to 70cm tall, forming a clump of broad, glaucous blue, grass-like leaves. It has good drought-tolerance once established and provides a good colour contrast for other foliage.
About the genus
Dianella are rhizomatous evergreen perennials with leathery, sword-shaped leaves and sprays of small, starry deep blue flowers followed by long-lasting blue or purple berries
Growing conditions
SunlightFull sun, Partial shade
Soil typeClay, Loam, Sand
Soil pHAcid, Neutral
Soil moistureMoist but well-drained, Well-drained
AspectEast-facing, South-facing, West-facing
ExposureSheltered
UK hardinessH4
Plant details
Plant typeGrass Like
HabitTufted
FoliageEvergreen
Height0.5-1 metres
Spread0.1-0.5 metres
Time to full height2-5 years
Suggested usesArchitectural, City and courtyard gardens, Cottage and informal garden, Gravel garden, Patio and container plants
ToxicityFruit are ornamental - not to be eaten. Wear gloves and other protective equipment when handling
Care notes
CultivationGrow in moderately fertile, humus-rich, well-drained acid to neutral soil in a sheltered site in sun or partial shade
PruningNo pruning required
PropagationPropagate by sowing seed or division in spring
Pest resistanceGenerally pest-free
Disease resistanceGenerally disease-free