King Alfred® Dianella caerulea ‘JOHN316’
- Best erosion control plant – strengthens the soil by 752%
- Dense compact blue green foliage
- Great rain garden plant
Description: King Alfred® Dianella is the best erosion control plant available, strengthening the soil by 752% (2007 Paananen, Layt; Study). With very short canes, and sometimes none at all, King Alfred® Dianella is a tidy plant with purple and yellow flowers that reach 1m high from September – March.
Size: 70cm high x 70cm wide.
Uses: Mass planting or specimen planting
Position: Full sun to moderate shade. Tolerates humidity, cold and is moderately drought tolerant. King Alfred® Dianella suits a wide variety of soils. Avoid very poor soils.
Care: Water as required for 8-13 weeks until established. Plant in a well mulched garden (chunky mulch is recommended). Ensure crown or base of plant is not below soil or mulch level. If required use slow release fertiliser in spring. Every 1-2 years cut back 15cm above the ground (will look better with pruning every year, this depends on your requirements). As this is a fast growing Dianella, it will require cutting back more often, but responds very well to being cut back. If it is not cut back every 2 years (minimum), it can become overgrown, and be short lived. With regular pruning it is a reliable, long lived, tidy Dianella.
Where it works: NSW, ACT, QLD, VIC, SA, WA & TAS.
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This website gives general information for the states/regions in Australia. For local information on which plants work in your area contact your local grower. Local grower knowledge is vital, this website is no substitute.
Heights shown on the website are for general gardening conditions. In well maintained gardens, some plants will get taller.
Explore our range of flax lilies including Dianella caerulea, Dianella revoluta, Dianella prunina, and Dianella tasmanica on our Dianella plants page.