Bulbophyllum Interpositum

Watering

These orchids need to have ample water supply when the plants are in active growth, and a drought of even a couple of days is enough to kill the new growths and set back the plant. Due to their shallow fine root system they need to have constant moisture around their roots.

Potting Mix

Bulbophyllum orchid can be grown mounted on slabs of wood or tree barks. However, all the species can be grown in shallow pots, or even baskets. One requirement is to retain enough moisture at the root, as most species don’t like to dry out. The rhizome can be trained to stay in the pot by bending them, eventually cutting the old bulbs and leaving them in place, so they will provide additional growth in the pot. Sphagnum has been popular because it retains a lot of moisture, which is what these plants prefer when in active growth; however when it decays or starts to retain too many salts, the plants will have problems.

Light

Bulbophyllum Orchids usually need intermediate light which is less than Cattleyas but more than Phalaenopsis. Higher light, that does not damage the leaves, seems to result in better and more frequent blooming. They can be grown indoors providing they receive good light.