How to Grow Dianella
Dianella tasmanica
Dianella is a tough Australian native strap-leaf plant prized for its attractive blue-purple berries and low-maintenance habit. It thrives in sun or shade, tolerates drought, poor soils, frost, and coastal conditions. Plant in well-drained soil and leave largely alone. Remove old tattered leaves annually for a tidy appearance. Excellent for mass planting, borders, and underplanting beneath trees.
Yearly Lifecycle
Care Essentials
Once in spring with a slow-release balanced fertiliser. Dianella is not a hungry plant and thrives without feeding in most garden soils.
Watch For
- Snails (on young plants)
- Leaf tip browning from extreme drought
- Root rot in waterlogged soil
Companions
Lomandra, Pigface, Grevillea, Westringia, Hardenbergia
Care Requirements
Light
Sun or shade, very adaptable
Thrives in full sun, partial shade, or deep shade. Flowering and berry production are best in brighter positions, but the plant performs well anywhere.
Watering
Drought-tolerant once established
Water regularly during establishment. Once settled, Dianella is highly drought-tolerant and needs supplemental water only in extreme prolonged dry spells.
Fertilizing
Light feed once in spring
One application of slow-release balanced fertiliser in spring is sufficient. Dianella is undemanding and thrives without feeding in most garden soils.
Pruning
Remove tattered leaves annually
Pull out old or tattered leaves from the base at any time. For a full refresh, cut the entire clump back to 15 cm in late winter before new growth emerges.
