Troubleshooting
Old World Climbing Fern problems — and how to fix them
Old World Climbing Fern (Lygodium microphyllum) 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.
Invasive escape risk
This species is a serious invasive pest in Florida and other warm, humid climates. Only grow in closed, controlled environments outside its native range.
Rampant growth
Can quickly overwhelm a support structure. Prune back regularly to keep the plant to a manageable size.
Spider mites
Prone in hot, dry conditions. Maintain humidity and treat with neem oil or insecticidal soap at first sight.
Root-bound stress
Container plants become root-bound quickly. Repot every 1-2 years into a larger container with fresh mix.
Prevent old world climbing fern problems before they start
Most old world climbing fern issues are care-mismatch, not bad luck. Dial in the basics:
Old World Climbing Fern problems — FAQ
Why is my old world climbing fern invasive escape risk?
This species is a serious invasive pest in Florida and other warm, humid climates. Only grow in closed, controlled environments outside its native range.
Why is my old world climbing fern rampant growth?
Can quickly overwhelm a support structure. Prune back regularly to keep the plant to a manageable size.
Why is my old world climbing fern spider mites?
Prone in hot, dry conditions. Maintain humidity and treat with neem oil or insecticidal soap at first sight.
Why is my old world climbing fern root-bound stress?
Container plants become root-bound quickly. Repot every 1-2 years into a larger container with fresh mix.