Oncidium Sharry Baby Leaf Dieback & Splitting: Root Rot & Light Fixes

Diagnosing the Problem

Leaves desiccate and split centrally; base of one leaf shows similar progression. Likely cause: degraded potting mix causing root rot. Older leaves naturally yellow and drop, but new growth shouldn't suffer.

Immediate Steps

• Reduce watering to every other week—roots can't absorb excess.
• Increase light (move outside if possible) to strengthen growth.
• Apply Dyna-Gro Pro-TeK (silicon supplement) per label to reduce future leaf splitting; overuse makes leaves brittle.

Repotting Timeline

Wait for new growth (late winter) to repot in fresh orchid mix, removing all rotted roots. This plant may still spike this fall if pseudobulbs are firm.