Troubleshooting
Dryopteris intermedia problems — and how to fix them
Dryopteris intermedia (Dryopteris intermedia) 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.
Waterlogging
Unlike swamp wood ferns, this species rots in soggy soil. Plant on a freely drained, rocky or sloped site and avoid standing water.
Winter frond damage
Evergreen fronds can be browned by harsh, exposed winters. Leave them to protect the crown and remove only the tattiest in early spring.
Sun scorch and drought
Hot sun and dry soil pale and crisp the fronds. Keep in shade with steady moisture and mulch.
Misidentification
Closely resembles and hybridises with D. carthusiana and D. campyloptera. Check glandular hairs and frond cut when buying to get the true evergreen species.
Prevent dryopteris intermedia problems before they start
Most dryopteris intermedia issues are care-mismatch, not bad luck. Dial in the basics:
Looking for dryopteris intermedia in general rather than its problems? Read the full dryopteris intermedia care guide — light, water, soil and feeding.
Dryopteris intermedia problems — FAQ
Why is my dryopteris intermedia waterlogging?
Unlike swamp wood ferns, this species rots in soggy soil. Plant on a freely drained, rocky or sloped site and avoid standing water.
Why is my dryopteris intermedia winter frond damage?
Evergreen fronds can be browned by harsh, exposed winters. Leave them to protect the crown and remove only the tattiest in early spring.
Why is my dryopteris intermedia sun scorch and drought?
Hot sun and dry soil pale and crisp the fronds. Keep in shade with steady moisture and mulch.
Why is my dryopteris intermedia misidentification?
Closely resembles and hybridises with D. carthusiana and D. campyloptera. Check glandular hairs and frond cut when buying to get the true evergreen species.