What’s the problem?
My daughter has a yucca plant on her landing, and while the lower side looks fine, the taller side is struggling. She suspects her partner might have overwatered it. Any advice?
Diagnosis
Yuccas are drought-tolerant and sensitive to overwatering, and yellowing leaves, soft areas on the trunk or drooping stems are all indicators of this. Excess moisture often leads to stress or root rot. This may explain why the taller side, which perhaps has deeper roots so sits in wet soil longer, is suffering more noticeably.
Prescription
Lift the yucca from its pot to inspect the roots (you can do this by laying it on its side if that makes it easier). Healthy roots are firm and pale, while overwatered roots will appear mushy, brown or smelly. Trim away any affected roots using sterilised scissors. Repot your yucca in fresh, well-draining compost mixed with sand or perlite. Ideally, wait until the top few inches of soil feel completely dry before watering again.
Prevention
Ensure adequate drainage holes and water sparingly, especially during winter or in lower-light areas. Before watering, feel the soil with your finger.
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