Arachnis hookeriana
Also known as: Hooker's Arachnis or Stauropsis canniformis Arachnis hookeriana h.v. luteola Arachnanthe alba Renanthera alba Arachnis canniformis Arachnis alba The White Scorpion Orchid in the subfamily: Epidendroideae
Native to: Cambodia Singapore
General Information
Hooker's Arachnis is a monopodial warm to hot growing orchid belonging to the sub family Epidendroideae native to Cambodia and Singapore. It is named after the English Botanist in the 19th century.
Plant Description
Monopodial. Each new growth has numerous leaves that grow to 2-10cm long
Flowers
Numerous long lasting, fragrant blossoms appear
Fragrance
The orchid is fragrant.
Substrate(s)
- Coarse
- Bark
- Spaghnum Moss
- Sand
- IsFragrant
Climate
Grows at low elevations. Rainfall ranges from 117mm to 617mm per day, heaviest in December and lightest in April. Humidity ranges from 81% to 86%, highest in December and lowest in March. Temperature ranges from 22C to 32C, highest in May (23C to 32C) and lowest in June (22C to 28C).
Watering
These orchids prefer a wet-dry cycle between waterings, they should be watered frequently but only when the moisture is approaching dryness, where the pot feels light and/or the media looks dry. Keep an eye on mounted orchids in warm weather as they may dehydrate quickly.
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
Use water retentive media such as moss to prevent roots from drying out quickly Repotting is best done annually.
