Troubleshooting
Cordyline australis problems — and how to fix them
Cordyline australis (Cordyline australis) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Leaf spot and slime flux
Cold, wet winters can trigger fungal or bacterial spotting and sudden leaf collapse. Improve drainage and remove badly affected foliage.
Frost and cold damage
Hard frost browns the leaves and can kill the growing tip; the plant often re-sprouts from the base. Protect the crown in severe cold.
Browning lower leaves
Old leaves naturally yellow, brown and droop along the trunk; this is normal and they can be trimmed away.
Root rot in containers
Waterlogged compost rots the roots. Use a gritty, free-draining mix and water only when the soil has partly dried.
Prevent cordyline australis problems before they start
Most cordyline australis issues are care-mismatch, not bad luck. Dial in the basics:
Looking for the species overview? Cordyline — the full care guide.
Cordyline australis problems — FAQ
Why is my cordyline australis leaf spot and slime flux?
Cold, wet winters can trigger fungal or bacterial spotting and sudden leaf collapse. Improve drainage and remove badly affected foliage.
Why is my cordyline australis frost and cold damage?
Hard frost browns the leaves and can kill the growing tip; the plant often re-sprouts from the base. Protect the crown in severe cold.
Why is my cordyline australis browning lower leaves?
Old leaves naturally yellow, brown and droop along the trunk; this is normal and they can be trimmed away.
Why is my cordyline australis root rot in containers?
Waterlogged compost rots the roots. Use a gritty, free-draining mix and water only when the soil has partly dried.