Crown Rot in Moth Orchids from Water Trapping

Water settling in the crown (center) of Phalaenopsis orchids causes crown rot—the newest leaf turns mushy and black. Removing the rotted leaf is correct. The plant can survive if the growing point (meristem) is undamaged.

Recovery Steps

• Stop misting the crown; water at the base only.
• Apply a copper-based fungicide or cinnamon (natural antifungal) to the crown.
• Provide bright indirect light, good air movement, and let the medium dry between waterings.
• New growth may emerge from the base or a side node in months.

Prevent recurrence by never letting water sit in the leaf axils.