How to Repot a Moth Orchid Without Burying the Crown

Moth orchids grow as monopodial epiphytes with fleshy aerial roots, one central crown, and no water-storing pseudobulbs. For repotting, read the roots, bark, crown, leaves, and spike together before following a calendar.

• bark has become fine, sour, or slow-draining
• roots crowd or fail inside the pot
• new root growth is beginning or root survival requires intervention

1. Soak attached roots enough to make removal gentler.
2. Remove old medium and identify firm versus hollow roots.
3. Trim only dead tissue with a clean tool.
4. Seat viable roots in fresh bark without burying the crown.

A grower evaluating Phalaenopsis repotting first records visible root color, bark condition, crown dryness, newest leaf, and flower-spike state. The key evidence is bark has become fine, sour, or slow-draining; the contrasting check is roots crowd or fail inside the pot. They make one controlled change and preserve the rest of the baseline.

• repotting only because flowers faded
• cutting firm aerial roots to fit a pot
• moving into a much larger wet container

Shorter, cooler days often slow root activity and bark drying. Warm bright conditions can increase water use while also increasing scorch or crown-rot risk when exposure changes abruptly.

Successful repotting work supports a firm crown, functional roots, stable leaves, and the next appropriate root tip, leaf, or spike without renewed stress.

• orchid root rot
• orchid wrinkled leaves
• orchid crown rot