Bulbophyllum stenobulbon

Also known as: The Slender Bulbed Bulbophyllum or Bulbophyllum clarkeanum Bulbophyllum youngsayeanum in the subfamily: Epidendroideae

Native to: Bhutan China India Myanmar Thailand

General Information

The Slender Bulbed Bulbophyllum is a warm growing epiphytic orchid belonging to the sub family Epidendroideae native to Bhutan, China, India, Myanmar, and Thailand.

Plant Description

Grows to 0.15-5cm. Each new growth has a single elliptic oblong shaped leaf that grows to 0.8-3.1cm long. Pseudobulbs grow to 0.4-5cm

Substrate(s)

• Coarse
• Medium
• Fine
• Bark
• Spaghnum Moss
• Perlite

Care Notes

These orchids like to be kept on the dry side, but may need to be watered daily during warm weather, and prefer a well draining mix or also do well mounted, provided they can be watered regularly.

These are quite a forgiving orchid, there are no special requirements to get this orchid to flower, just good care and consistent conditions. Larger plants may be more fussy and can react poorly to change; a poorly timed repotting, a pest infection or an unusually hot day can set them back for a couple of years. However, even plants that have been treated poorly can thrive, and if they are set back they often recover much stronger then they would otherwise be.

Climate

Grows at low elevations. Rainfall ranges from 3mm to 1176mm per day, heaviest in July and lightest in December. Humidity ranges from 64% to 93%, highest in August and lowest in December. Temperature ranges from 15C to 31C, highest in April (21C to 31C) and lowest in January (15C to 24C).

Fertiliser

Apply liquid based fertiliser per recommended directions. They can benefit from a high phosphate fertiliser leading up to flowering season, followed by a high nitrogen fertiliser when new growth appears, and a balanced fertiliser in other times. These orchids can also tolerate slow release fertiliser applied 1-2 pellets per cup (250ml) of media.

Use balanced fertiliser year round. Be sure to flush out excess fertiliser by running water through the media regularly year round. Apply fertiliser regularly at half strength year round. Use a high Nitrogen fertiliser during Spring and Summer. Use a high Phosphorous fertiliser during Summer.

Potting

It's best to observe the root system when repotting and use that as a guide:

A plant with a short root system will do better in a shallower pot with a fine mix, or mounted on fern or cork supplanted with a good amount of moss or similar material.

A plant with a long root system often does well in a pot filled with moss or fine media, mixing in perlite and charcoal is always beneficial to reduce the likelihood of the mix becoming soggy and keeps it fresh.

A plant with a coarser long root system can be potted in a deeper pot, but with 2/3 coarse material such as bark, expanded clay, or coco chips and topped with moss or similar material. This will allow the moisture to remain inside the pot but give the roots air as well.

This plant does very well in baskets or suspended pots This plant does well mounted to Cork slabs. Repotting is best done annually.