Are you looking for a blue-toned Australian flax that you can depend on to thrive and bring cool tones throughout the whole year? Whether you’re looking for a subtle glaucous bluish green, or full-on blue tones, this article was created to help you find the perfect blue-leafed Dianella to suit your preferences and garden conditions.
We explore five of the best dianellas with brilliant blue leaves—Summer Rev™, Cassa Blue®, Clarity Blue™, Little Rev™, and Revelation® Dianellas—and how they each differ to cater to different landscape requirements.
Summer Rev™ Dianella – A Resilient Vision in Blue
Summer Rev™ Dianella spp. ‘DIAN04’ is a true breakthrough in the world of Australian flax. Featuring clean, compact, upright blue foliage, this variety thrives in challenging conditions, including humidity as well as heavy and poorly draining soils. At 500-600mm high and 400-500mm wide, Summer Rev™ Dianella is ideal for a range of landscaping applications, including borders, pots, mass planting, and native biodiversity projects.
Summer Rev™ Dianella Benefits:
- Versatile and resilient:Performs well in frost, heat, drought, and humidity.
- Aesthetic appeal:Its blue flowers and purple berries provide seasonal interest while benefiting native pollinators.
- Low maintenance:Requires occasional pruning every 3-5 years to stay tidy.
Cassa Blue® Dianella – Compact Blue Elegance
Compact and clump-forming, Cassa Blue® Dianella caerulea ‘DBB03’ is an attractive, low-growing variety with rich blue foliage. Reaching a manageable height of 50cm and width of 40cm, it is suitable for mass planting or as a highlight in residential or commercial designs. Its spectacular flowering season—from September to November—sees masses of purple and yellow blooms complemented by its foliage.
Cassa Blue® Dianella Benefits
- Reliable and hardy:Thrives in full sun to partial shade, with good drought and cold tolerance.
- Perfect for neat designs:Ideal for formal gardens due to its shape and low height.
- Care:A well-mulched site and pruning every 3 years enhance its appearance.
Clarity Blue™ Dianella – The Tough Performer
A hybrid successor to the popular Cassa Blue® and Utopia® Dianellas, Clarity Blue™ Dianella hybrid ‘DP401’ blends toughness with a true blue appearance. Growing to approximately 550mm high and 450mm wide, it is a top choice for harsh climates. Clarity Blue™ Dianella thrives in well-drained to clay loam soils and tolerates periodic wet feet, making it dependable in different conditions.
https://www.ozbreed.com.au/plant-ranges/strappy-leaf-plants/clarity-blue-dianella/
Clarity Blue™ Dianella Benefits:
- Clumping and adaptable:Suits mass planting as well as accent features.
- Showy flower stems:Its summer blooms add an extra layer of beauty to your landscape.
- Care instructions:Minimal watering and pruning are required after establishment.
Little Rev™ Dianella – Small Yet Striking
For compact spaces or modern designs, Little Rev™ Dianella revoluta ‘DR5000’ offers green-blue-grey foliage in a striking, architectural form. At just 30-40cm in height and width, Little Rev™ is perfectly suited to smaller gardens or borders. Its hardiness and minimal maintenance needs make it a perfect addition to drought-tolerant designs.
https://www.ozbreed.com.au/plant-ranges/strappy-leaf-plants/little-rev-dianella/
Little Rev™ Dianella Benefits:
- Hassle-free:Once established, it thrives with little to no care.
- Easy landscaping:Performs well in raised or flat gardens, though avoiding depressed areas is recommended.
- Seasonal charm:Purple flowers appear abundantly in October and November.
Revelation® Dianella – Erosion Controller
With its unique ability to handle periodic wet feet, Revelation® Dianella revoluta ‘DRG04’ is a medium-sized favourite for mass plantings and erosion control. Sporting cleaner blue-green foliage and vibrant blue flowers, this plant is both practical and stunning. It grows to 50cm high and wide, making it manageable yet impactful in both commercial and residential spaces.
https://www.ozbreed.com.au/plant-ranges/strappy-leaf-plants/revelation-dianella/
Revelation® Dianella Benefits:
- Best in wet conditions:Its tolerance for damp soils sets it apart from most other dianellas.
- Erosion control:Strengthens soil by as much as 135%, making it useful for stabilising slopes or waterways.
- Low upkeep:Requires occasional pruning to maintain its dense, attractive appearance.
Why Choose Blue-Toned Dianellas?
Besides their aesthetic appeal, blue-toned Dianellas often have a greater drought tolerance to those with classic green foliage. Whether you are seeking bold architectural forms, biodiversity support, or erosion control, varieties like Summer Rev™, Cassa Blue®, Clarity Blue™, Little Rev™, and Revelation® native flaxes offer something for every landscape requirement.
By incorporating these hardy, beautiful plants into your next project, you’ll enjoy year-round foliage contrast, seasonal blooms, and eco-friendly benefits, all while minimising the effort required to maintain a stunning garden. Choose one—or mix several—of these remarkable dianellas to create a vibrant, blue-infused oasis that will stand the test of time.