Repotting Phalaenopsis and Dendrobiums: Media Choices, Aerial Roots, and Mist Timing

Repotting Two Different Orchids: One Size Does Not Fit All

Phalaenopsis (thick roots) and Dendrobiums (thin roots) need different media and schedules.

Media Selection

• Sphagnum moss: For growers who water infrequently. Holds water long.
• Bark mix: For regular waterers. Drains fast, aerates well.
• Match to your habit: Choose based on your watering style, not the plant's.

Phalaenopsis Repotting

• Every 1–2 years in spring.
• Medium/large bark.
• Aerial roots: tuck into pot if they fit easily; don't force.
• Smallest pot that holds roots—overpotting causes rot.

Dendrobium Repotting

• Only when growths crawl over the pot edge.
• Fine bark mix.
• Dislike frequent disturbance.

Misting for Humidity

Mist only in mornings so droplets evaporate by night—prevents fungal spots. Helps buds and aerial roots.

Tailor media and timing to each genus and your routine.