Troubleshooting
Australian Tree Fern problems — and how to fix them
Australian Tree Fern (Sphaeropteris cooperi) 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.
Frost and cold damage
Frost-tender; cold below about 0°C damages or kills the crown. Bring under cover or heavily protect the crown in winter outside frost-free zones.
Crown drying out
Like all tree ferns, it dies if the central crown dries. Water into the crown and keep the trunk damp, not just the surrounding soil.
Skin irritation from frond hairs
The fine hairs and scales on fronds and trunk can irritate skin on handling. Wear gloves and site it away from paths where people and pets brush past.
Sun scorch on young fronds
Tender new fronds bleach and crisp in direct sun or low humidity. Provide bright dappled shade and raise humidity while establishing.
Prevent australian tree fern problems before they start
Most australian tree fern issues are care-mismatch, not bad luck. Dial in the basics:
- Common australian tree fern problems — our other guide for the same plant
- What's wrong with my plant? — the diagnosis apps compared
- Australian Tree Fern watering schedule
- Australian Tree Fern light requirements
- Best soil mix for australian tree fern
- Australian Tree Fern temperature & humidity
- Full australian tree fern care guide
Looking for australian tree fern in general rather than its problems? Read the full australian tree fern care guide — light, water, soil and feeding.
Australian Tree Fern problems — FAQ
Why is my australian tree fern frost and cold damage?
Frost-tender; cold below about 0°C damages or kills the crown. Bring under cover or heavily protect the crown in winter outside frost-free zones.
Why is my australian tree fern crown drying out?
Like all tree ferns, it dies if the central crown dries. Water into the crown and keep the trunk damp, not just the surrounding soil.
Why is my australian tree fern skin irritation from frond hairs?
The fine hairs and scales on fronds and trunk can irritate skin on handling. Wear gloves and site it away from paths where people and pets brush past.
Why is my australian tree fern sun scorch on young fronds?
Tender new fronds bleach and crisp in direct sun or low humidity. Provide bright dappled shade and raise humidity while establishing.