Troubleshooting
Anderson's Holly Fern problems — and how to fix them
Anderson's Holly Fern (Polystichum andersonii) 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.
Crown rot
Soggy, poorly drained soil rots the crown. Plant in humus-rich but well-drained ground and avoid waterlogging.
Sun scorch
Direct sun browns and bleaches the evergreen fronds. Keep in partial to full shade.
Winter frond tatter
Old fronds can look tired by late winter. Cut them back as new croziers emerge in spring to refresh the clump.
Drought stress
Dry summer soil causes frond browning. Mulch and water during prolonged dry spells to keep the rootzone moist.
Prevent anderson's holly fern problems before they start
Most anderson's holly fern issues are care-mismatch, not bad luck. Dial in the basics:
- Common anderson's holly fern problems — our other guide for the same plant
- What's wrong with my plant? — the diagnosis apps compared
- Anderson's Holly Fern watering schedule
- Anderson's Holly Fern light requirements
- Best soil mix for anderson's holly fern
- Anderson's Holly Fern temperature & humidity
- Full anderson's holly fern care guide
Looking for anderson's holly fern in general rather than its problems? Read the full anderson's holly fern care guide — light, water, soil and feeding.
Anderson's Holly Fern problems — FAQ
Why is my anderson's holly fern crown rot?
Soggy, poorly drained soil rots the crown. Plant in humus-rich but well-drained ground and avoid waterlogging.
Why is my anderson's holly fern sun scorch?
Direct sun browns and bleaches the evergreen fronds. Keep in partial to full shade.
Why is my anderson's holly fern winter frond tatter?
Old fronds can look tired by late winter. Cut them back as new croziers emerge in spring to refresh the clump.
Why is my anderson's holly fern drought stress?
Dry summer soil causes frond browning. Mulch and water during prolonged dry spells to keep the rootzone moist.