Repotting a Rootbound Phalaenopsis: Step-by-Step for Beginners

When & How to Repot an Overgrown Moth Orchid

A phalaenopsis with roots climbing out of the pot and up the stem isn't "rootbound" in the traditional sense—these are aerial roots, normal for epiphytes. But if the mix has broken down or the pot is too small, repotting helps.

Signs It's Time to Repot

• Potting mix decomposed (smells sour, stays soggy)
• Plant unstable in pot
• Roots mostly dead/mushy inside pot
• After flowering, annually

Simple Repotting Steps

1. Buy coarse orchid bark mix and a clear plastic pot 1–2" wider.
2. Soak new mix 30 minutes; drain.
3. Remove plant, gently shake off old mix.
4. Trim mushy roots (healthy = firm, green when wet).
5. Place in new pot, add damp mix around roots, tap to settle.
6. Keep base of leaves at mix surface. Don't bury crown.
7. Wait 1 week before watering; then resume normal care.

Pro Tips

• Wet roots bend easier—soak 10 min if stiff.
• Join a local orchid society for hands-on help.
• Annual repotting after bloom keeps roots healthy.