Troubleshooting
Bush Cycad problems — and how to fix them
Bush Cycad (Encephalartos trispinosus) 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.
Overwatering and root rot
Most common fatal error in cultivation. Leaves yellow from the base and the trunk softens at the soil line. Remove from pot, cut away all rotted roots, treat with a fungicide drench, and replant in completely dry gritty medium. Do not water for 2 weeks after repotting.
Scale insects
Armoured scales (particularly cycad aulacaspis scale) cluster on fronds and the trunk, sucking sap and causing yellowing. Treat with repeated applications of horticultural oil or a systemic insecticide; remove heavily infested fronds.
Slow or absent new growth
In low light or cool temperatures, Encephalartos trispinosus may skip a growing season entirely. Ensure it receives maximum sun, temperatures above 18°C during the growing period, and a balanced spring feed to stimulate a flush.
Prevent bush cycad problems before they start
Most bush cycad issues are care-mismatch, not bad luck. Dial in the basics:
Looking for bush cycad in general rather than its problems? Read the full bush cycad care guide — light, water, soil and feeding.
Bush Cycad problems — FAQ
Why is my bush cycad overwatering and root rot?
Most common fatal error in cultivation. Leaves yellow from the base and the trunk softens at the soil line. Remove from pot, cut away all rotted roots, treat with a fungicide drench, and replant in completely dry gritty medium. Do not water for 2 weeks after repotting.
Why is my bush cycad scale insects?
Armoured scales (particularly cycad aulacaspis scale) cluster on fronds and the trunk, sucking sap and causing yellowing. Treat with repeated applications of horticultural oil or a systemic insecticide; remove heavily infested fronds.
Why is my bush cycad slow or absent new growth?
In low light or cool temperatures, Encephalartos trispinosus may skip a growing season entirely. Ensure it receives maximum sun, temperatures above 18°C during the growing period, and a balanced spring feed to stimulate a flush.