Troubleshooting
Epiphytic Zamia problems — and how to fix them
Epiphytic Zamia (Zamia pseudoparasitica) 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.
Leaflet tip browning
The most common issue in cultivation, caused by low humidity, draughts, or infrequent watering. Raise ambient humidity above 65%, shelter from air-conditioning or heating vents, and water slightly more frequently. Brown tips do not reverse but new growth will be healthy once conditions improve.
Root desiccation on mounts
When grown on bark slabs, exposed roots dry out rapidly in low-humidity conditions. Pack a generous layer of living or preserved sphagnum moss around the root ball and mist twice daily. In dry climates, mounting is only practical inside a enclosed humid cabinet or greenhouse.
Scale insects
Scale is the most common pest on cycads in cultivation. Inspect leaflet undersides and the trunk regularly. Treat with systemic imidacloprid drenches (note: not for outdoor use in the UK) or repeated neem oil and insecticidal soap applications at 10-day intervals.
Prevent epiphytic zamia problems before they start
Most epiphytic zamia issues are care-mismatch, not bad luck. Dial in the basics:
Looking for epiphytic zamia in general rather than its problems? Read the full epiphytic zamia care guide — light, water, soil and feeding.
Epiphytic Zamia problems — FAQ
Why is my epiphytic zamia leaflet tip browning?
The most common issue in cultivation, caused by low humidity, draughts, or infrequent watering. Raise ambient humidity above 65%, shelter from air-conditioning or heating vents, and water slightly more frequently. Brown tips do not reverse but new growth will be healthy once conditions improve.
Why is my epiphytic zamia root desiccation on mounts?
When grown on bark slabs, exposed roots dry out rapidly in low-humidity conditions. Pack a generous layer of living or preserved sphagnum moss around the root ball and mist twice daily. In dry climates, mounting is only practical inside a enclosed humid cabinet or greenhouse.
Why is my epiphytic zamia scale insects?
Scale is the most common pest on cycads in cultivation. Inspect leaflet undersides and the trunk regularly. Treat with systemic imidacloprid drenches (note: not for outdoor use in the UK) or repeated neem oil and insecticidal soap applications at 10-day intervals.