Dendrobium comptonii

Also known as: Compton's Dendrobium or Yellow Cane Orchid in the subfamily: Epidendroideae

Native to: Australia

General Information

Compton's Dendrobium is a medium to large sized sympodial cool to warm growing epiphytic or lithophytic orchid belonging to the sub family Epidendroideae native to Australia. It is named after the English-South African Botanist in the 1900's.

Plant Description

Sympodial. Grows to 40cm. . Pseudobulbs grow to 40cm

Flowers

Numerous fragrant blossoms appear

Fragrance

The orchid is fragrant.

Substrate(s)

• Coarse

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.

Fragrant:

• IsFragrant

Climate

Grows at low elevations. Rainfall ranges from 107mm to 196mm per day, heaviest in January and lightest in August. Humidity ranges from 69% to 72%, highest in January and lowest in August. Temperature ranges from 13C to 26C, highest in July (19C to 26C) and lowest in January (13C to 18C).

Watering

These orchids are sensitive to excessive watering and should only be watered when they look thirsty. Water infrequently and ensure that the roots are dry before watering. Keep an eye on them especially during hot weather as overwatering can lead to rot, whereas underwatering may result in wilting or shriveling, which while unattractive, will not kill the plant.

Keep moisture levels up during hot weather as the plant is prone to dehydration

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.

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

These plants are quite forgiving and will do well repotted ever 2-3 years. The mix should be coarse, well draining, and allow space for air to move and for roots to grow. 

Alternatively, these plants will also do well mounted to tree fern or cork slabs, or mounted to trees.

Best time for repotting or mounting the orchids is the end of winter when new growths start to appear. Avoid repotting during hot weather,

Repotting is best done annually.