Troubleshooting
Colombian Zamia problems — and how to fix them
Colombian Zamia (Zamia cf. encephalartoides) 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.
Root rot from overwatering
Despite its tropical origin, Z. encephalartoides is adapted to seasonally dry conditions. Overwatering — especially when temperatures are low — quickly causes root and caudex rot. Ensure sharp drainage and water only when the soil has dried substantially.
Leaf bleaching in full sun
Prolonged exposure to intense direct sun, particularly afternoon sun in summer, can bleach and yellow the normally rich-green fronds. Provide some shade from the hottest afternoon sun and ensure adequate water during heat spells.
Slow growth in suboptimal conditions
This species grows slowly under the best conditions and even more slowly if light, temperature, or drainage are suboptimal. Annual fertilising at bud-swell, maximum light, and warm summer temperatures are the main growth levers.
Prevent colombian zamia problems before they start
Most colombian zamia issues are care-mismatch, not bad luck. Dial in the basics:
Looking for colombian zamia in general rather than its problems? Read the full colombian zamia care guide — light, water, soil and feeding.
Colombian Zamia problems — FAQ
Why is my colombian zamia root rot from overwatering?
Despite its tropical origin, Z. encephalartoides is adapted to seasonally dry conditions. Overwatering — especially when temperatures are low — quickly causes root and caudex rot. Ensure sharp drainage and water only when the soil has dried substantially.
Why is my colombian zamia leaf bleaching in full sun?
Prolonged exposure to intense direct sun, particularly afternoon sun in summer, can bleach and yellow the normally rich-green fronds. Provide some shade from the hottest afternoon sun and ensure adequate water during heat spells.
Why is my colombian zamia slow growth in suboptimal conditions?
This species grows slowly under the best conditions and even more slowly if light, temperature, or drainage are suboptimal. Annual fertilising at bud-swell, maximum light, and warm summer temperatures are the main growth levers.