Propagate a moth orchid from a keiki — a baby plant on a flower spike — only after it has its own leaves and roots. A leaf or a stem in a water jar will not make a plant. P. amabilis and compact hybrids such as Brother Pico Sweetheart use the same ritual.
Wait for a keiki with leaves and roots
| Factor | Recommended | Avoid |
|---|---|---|
| Ready baby | Several leaves and its own roots about 2 to 3 inches long | A nub with no roots |
| The cut | A clean slice on the spike, a short stub left as an anchor | Yanking the baby off the node |
| Pot | A 2- to 4-inch draining cup of fine bark or damp sphagnum | Garden soil, or a large unused pot |
| Not this plant | Keiki only | A leaf cutting, a water jar, or a Cattleya split |
Wait until the keiki has two or three roots, then cut it free and pot it on. [1] Keep-alive light stays on How to Grow Phalaenopsis.
How do I propagate a phalaenopsis keiki?
Wait until the baby has several leaves and its own roots. Cut the spike a little above and below the keiki, then pot it in a small container of fine bark or damp sphagnum.
How to pot a keiki
- Use a clean blade. Cut the spike a little above and below the keiki so a short stub stays attached. Do not tear the node.
- Optional: dust the cut with ground cinnamon.
- Set the baby in a small draining pot of fine fir bark or damp sphagnum. Crown at the surface. Roots pointed down. [2]
- Bright indirect light. Keep the mix barely damp. No fertilizer until new root tips show.
Can I grow a moth orchid from a leaf?
No. Phalaenopsis is monopodial. A keiki on a spike node is the home method. A loose leaf or a water jar will not make a plant.
What fails a moth-orchid cutting
- A leaf or stem in a water jar — this plant does not root that way.
- A keiki cut before it has roots — the baby dries out.
- Garden soil or a deep peat pot — velamen roots rot.
- Splitting the mother like a Cattleya — Phalaenopsis grows from one stem. [3]
- A succulent leaf-cut ritual — a moth-orchid leaf will not callus into a plant. [4]
A packed, soil-like mother is a different job on How to Repot Phalaenopsis.
Wait for leaves and roots, then pot the keiki in fine bark.
FAQ
When is a keiki ready to pot?
When it has several leaves and its own roots a couple of inches long. A leafless nub is too early.
Do I need keiki paste?
No. Paste can encourage a node, but it is optional. This page is for a keiki that already exists.
Should I root a keiki in water?
No. Use fine bark or damp sphagnum in a small draining pot. Standing water rots velamen roots.
Can I divide the mother plant?
No. Phalaenopsis is monopodial. It does not split like Cattleya. Keiki is the home clone.
What mix should I use for a keiki?
Fine fir bark, sphagnum, or a fine bark–moss mix. Never garden soil. Move toward medium bark as it grows.
How long until a keiki blooms?
Often a year or more — sometimes several. Light and bark matter more than fertilizer on a baby.
Related guides
Recommended plants
References
- [1] Elisabeth C. Miller Library -
https://depts.washington.edu/hortlib/pal/propagating-phalaenopsis-orchids/ - [2] Almanac -
https://www.almanac.com/plant/orchids - [3] Missouri Botanical Garden -
https://www.missouribotanicalgarden.org/gardens-gardening/your-garden/help-for-the-home-gardener/advice-tips-resources/visual-guides/repotting-phalaenopsis-and-other-monopodial-orchid - [4] NC State Extension -
https://plants.ces.ncsu.edu/plants/phalaenopsis/
This note is part of Phalaenopsis Guides.
More notes on making another plant live in Propagating Guides.
Updated: Reviewed by Bosquelle Editors