Elleanthus oliganthus

Also known as: The Sparse or Elleanthus vitellinus Evelyna oligantha in the subfamily: Epidendroideae

Native to: Ecuador Region de Huanuco - Peru

General Information

The Sparse is a medium to large sized cool to warm growing epiphytic or terrestrial orchid belonging to the sub family Epidendroideae native to Ecuador and Peru.

Plant Description

Grows to 100cm. Each new growth has numerous erect elliptic, lance shaped, oblong shaped leaves that grow to 6.5-20cm long. Pseudobulbs grow to 100cm

Substrate(s)

• Coarse
• Medium
• Bark
• Treefern
• Spaghnum Moss

Care Notes

These orchids like to be watered regulary, especially during warm weather, and prefer a well draining mix or also do well mounted, provided they can be watered daily or even many times a day.

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.

Climate

Grows at low to high elevations. Rainfall ranges from 203mm to 381mm per day, heaviest in October and lightest in July. Humidity ranges from 87% to 89%, highest in January and lowest in February. Temperature ranges from 14C to 26C, highest in March (16C to 26C) and lowest in January (14C to 23C).

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.

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.

Use balanced fertiliser during Spring and Summer. 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 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.

This plant does very well in baskets or suspended pots This plant does well mounted. Repotting is best done annually.