Description
Dianella caerulea 'Cassa Blue®' is a compact, evergreen perennial native to Australia, particularly thriving in Western Australia. This cultivar is celebrated for its striking blue-green foliage and small violet flower clusters, which are followed by attractive purple berries. 'Cassa Blue®' is well-suited for mass plantings, borders, or as a specimen in small areas, providing year-round colour and form. It prefers a sunny position in well-drained soil and is tolerant of dry periods and light frost.
In Perth's climate, Dianella caerulea 'Cassa Blue®' thrives in full sun to part shade and is adaptable to various soil types, including heavy clay or free-draining media. It is drought-tolerant and can withstand exposed and windy conditions, making it ideal for coastal gardens. Regular maintenance includes removing dead foliage to maintain a neat appearance and occasional fertilisation with a slow-release fertiliser.
| Botanical Name | Dianella caerulea 'Sydney Ecotype' x hybrida |
| Common Name | Blue Flax Lily |
| Cultivar | Cassa Blue® |
|
Classification |
Small Natives |
| PBR Name | DBB03 |
| Origin | Western Australia - Bred in Sydney |
| Foliage | Evergreen |
| Height | 30–40 cm |
| Width | 40–50 cm |
| Light | Full sun to part shade |
| Soil | Well-drained |
| Water Requirement | Low to moderate |
| Lifespan | Perennial |
| Flower Colour | Violet |
| Flower Time | Birak (Early summer) |
| Toxicity | Non-toxic to humans and pets |
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