Phaius callosus

Also known as: The Callousy Phaius or Phaius callosus var. sumatranus Phaius hasseltii Geodorum plicatum Phaius kuhlii Limodorum callosum in the subfamily: Epidendroideae

Native to: Indonesia

General Information

The Callousy Phaius is a sympodial hot growing epiphytic orchid belonging to the sub family Epidendroideae native to Indonesia.

Plant Description

Sympodial. Each new growth has numerous leaves that grow to 61cm long. Pseudobulbs grow to 8cm

Flowers

Numerous long lasting, fragrant blossoms appear during Summer and Spring

Fragrance

The orchid is fragrant.

Blooming Season

• Spring
• Summer

Care Notes

These orchids have a fine root system that can quickly die back if left dry for too long, but also does not like to be kept wet, so water regularly but ensure that the mix is dry before watering. 

Fragrant:

• IsFragrant

Climate

Grows at low to high elevations. Rainfall ranges from 13mm to 602mm per day, heaviest in July and lightest in March. Humidity ranges from 65% to 84%, highest in July and lowest in March. Temperature ranges from 23C to 31C, highest in March (24C to 31C) and lowest in January (23C to 29C).

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.

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,

This plant does well mounted.