Troubleshooting
Bonsai Pachypodium problems — and how to fix them
Bonsai Pachypodium (Pachypodium brevicaule) 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 winter moisture
The most common killer. Any soil moisture combined with low temperatures during dormancy leads to rapid basal rot. The caudex must be completely dry from autumn through early spring.
Etiolation
Stem stretching and loss of the characteristic flat compact form caused by inadequate light. Caused by keeping indoors in low-light positions — move to the brightest spot available or supplement with a grow light.
Mealybugs
Tend to colonise spine bases and the growing tips. Treat early with 70% isopropyl alcohol on a cotton swab; repeated applications may be needed. Systemic insecticide can be used for heavy infestations.
Prevent bonsai pachypodium problems before they start
Most bonsai pachypodium issues are care-mismatch, not bad luck. Dial in the basics:
Bonsai Pachypodium problems — FAQ
Why is my bonsai pachypodium root rot from winter moisture?
The most common killer. Any soil moisture combined with low temperatures during dormancy leads to rapid basal rot. The caudex must be completely dry from autumn through early spring.
Why is my bonsai pachypodium etiolation?
Stem stretching and loss of the characteristic flat compact form caused by inadequate light. Caused by keeping indoors in low-light positions — move to the brightest spot available or supplement with a grow light.
Why is my bonsai pachypodium mealybugs?
Tend to colonise spine bases and the growing tips. Treat early with 70% isopropyl alcohol on a cotton swab; repeated applications may be needed. Systemic insecticide can be used for heavy infestations.