Phalaenopsis Orchid
Photo: Unknown · CC BY-SA 3.0
houseplantintermediateoffset pupdivision

How to Propagate Phalaenopsis Orchid

Phalaenopsis spp. · Also called Moth Orchid

Methods Offsets (keiki), division
Difficulty Intermediate
Best season Spring–summer
Time to root 2–4 months
Group Houseplant

Orchids occasionally produce baby plants called “keiki” along their flower spike. Wait until a keiki has grown its own roots at least an inch or two long before separating it — removing one too early usually kills it.

Offsets (keiki)

  1. Once a keiki on the spike has developed roots 1–2 inches long, cut it free just below its base with a sterile blade.
  2. Pot in orchid bark mix, or mount as you would a mature orchid.
  3. Keep humidity elevated while it establishes.

When to propagate

Spring through summer, whenever a keiki is ready.

Common problems

Keiki struggled after removal. Likely removed before its roots were developed enough — leave any future keiki attached longer.

Questions people ask

Why isn’t my orchid producing keiki? Most Phalaenopsis rarely produce them; it’s not something you can reliably force, and dividing a mature plant at the base is the more common alternative when keiki don’t appear.

Similar plants: Dendrobium Orchid, Bromeliad