Brassia thyrsodes
Also known as: The Pine or Brassia boliviensis in the subfamily: Epidendroideae
Native to: Puno - Peru
General Information
The Pine is a large sympodial cool to warm growing epiphytic or terrestrial orchid belonging to the sub family Epidendroideae native to Peru.
Plant Description
Sympodial. Grows to 65cm. Each new growth has numerous thick arching leaves that grow to 4-50cm long. Pseudobulbs grow to 12-15cm
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 high elevations. Rainfall ranges from 15mm to 173mm per day, heaviest in August and lightest in February. Temperature ranges from 13C to 25C, highest in March (16C to 25C) and lowest in January (13C to 22C).
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
These plants do well with slow release fertiliser at the rate of 2-3 pellets per cup (250ml) of media. Additional fertiliser during the growth period may be beneficial, but not necessary.
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. Repotting is best done after the growing season when the plant has died back.
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.
This plant does well mounted.