Blackened roots on a phalaenopsis

DIAGNOSIS

Root rot affecting ~70% of the root mass. The substrate has gone anaerobic; the plant is on the edge of viability.

PLAN FOR THE COMING DAYS

1. 01

   Remove from pot, trim all black/mushy roots back to healthy tissue

2. 02

   Rinse remaining roots in a weak hydrogen peroxide solution

3. 03

   Repot in fresh orchid bark; do not water for the first 5 days