Brown Spots on Aerial Phalaenopsis Roots: Normal Aging

Aerial Roots Develop Protective Corky Layer

Brown spots on exposed aerial roots are normal—they form a corky tissue (velamen) to reduce water loss. This is not rot. Rot appears as mushy, collapsed roots.

Repotting Tip

After flowering, repot into a slightly larger pot with fresh fir-bark mix. Gently rotate the root mass while lowering into the pot to guide aerial roots inside, minimizing damage.