Moth orchid care
Moth orchids are epiphytes: in the wild they cling to tree bark with roots exposed to air and rain. Most orchid care mistakes come from treating them like soil plants.
Light
Bright indirect light, such as an east window. Leaves should be medium olive green: dark green means too little light, yellowish means too much.
Watering
Water when the bark is dry and roots in a clear pot look silvery rather than green, usually once a week. Run water through the pot for 15–30 seconds and let it drain fully. Never let it stand in water.
Soil, feeding and repotting
Soil: Coarse orchid bark or sphagnum moss, never regular potting soil. Roots need air.
Feeding: Weak orchid fertiliser every other watering while growing ("weakly, weekly").
Repotting: Every 1–2 years after flowering, when bark breaks down.
Propagation
Keikis (baby plants) sometimes form on flower spikes; pot them once they have 3-inch roots.
Problems and fixes
| What you see | Likely cause | What to do |
|---|---|---|
| Mushy brown roots | Overwatering or broken-down bark. | Trim dead roots, repot into fresh bark. |
| Wrinkled, limp leaves | Dehydration, often because roots have rotted. | Check roots; if healthy, water more thoroughly. |
| Buds drop before opening | Draughts, sudden temperature changes, or ethylene from ripening fruit. | Keep it in a stable spot away from fruit bowls and heaters. |
Not sure what you’re looking at? Upload a photo to the plant doctor in “What’s wrong with it?” mode.
Ask about your moth orchid
Questions gardeners ask
Should I water orchids with ice cubes?
It works in the sense that the plant survives, but it gives uneven, small amounts of water. A proper soak and drain is better for the roots.
How do I get my orchid to rebloom?
Give bright indirect light, keep feeding lightly, and expose it to cooler nights (around 55–60°F) for about a month in autumn.
What do I do with the flower spike after blooming?
Cut above a node to try for a side spike, or at the base to let the plant rest and build strength.