Phaius geffrayi

Native to: Madagascar

General Information

Phaius geffrayi is a sympodial cool to warm growing epiphytic or terrestrial orchid belonging to the sub family Epidendroideae native to Madagascar.

Plant Description

Sympodial. Each new growth has numerous erect arching, oblong shaped leaves that grow to 20-45cm long

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. 

Climate

Grows at low to high elevations. Rainfall ranges from 5mm to 264mm per day, heaviest in July and lightest in January. Humidity ranges from 65% to 83%, highest in August and lowest in January. Temperature ranges from 14C to 26C, highest in June (18C to 26C) and lowest in January (14C to 23C).

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 can be sensitive to repotting though should not require repotting regularly. Repotting should be done when the mix has broken down to the point that it doesn't absorb water or holds onto water for far too long, usually the plant shows a decline in growth as well.

The mix should be free draining, with a blend of 30% inorganic ingredients such as coarse sand, gravel or perlite, mixed in with about 70% organic ingredients such as peat, leaf litter or decomposed bark. Avoid commercial potting mixes as they can vary wildly and may contain "wetting agents" that can hold onto water for loo long, causing rotting and stunted growth.