Isochilus linearis

Also known as: The Slim Isochilus or Isochilus peruvianus Isochilus leucanthus Isochilus brasiliensis Cymbidium lineare Coilostylis obtusifolia Epidendrum lineare Isochilus linearis var. leucanthus in the subfamily: Epidendroideae

Native to: Argentina Mexico

General Information

The Slim Isochilus is a medium sized sympodial cool to warm growing epiphytic, lithophytic or terrestrial orchid belonging to the sub family Epidendroideae native to Argentina and Mexico.

Plant Description

Sympodial. Grows to 30-76cm. Each new growth has numerous leaves that grow to 0.25-6.5cm long. Pseudobulbs grow to 0.1-76cm. The plant tends to climb or sprawl with each new growth

Substrate(s)

• Coarse
• Medium
• Bark
• Charcoal
• Treefern
• Perlite

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

These orchids grow in cool climates, at low altitudes, in cool plains, forests or coastal scrub.

They are forgiving of humidity variances as long as temperatures are kept on the cool side. They can do well outdoors in the garden in cool and temperate areas, though it is important that they are protected from warm dry winds. They can enjoy morning sun especially in winter but will need protection from the hot sun in the afternoon and during summer. With some acclimatisation they may be able to receive more sun.

 

Grows at low to high elevations. Rainfall ranges from 5mm to 175mm per day, heaviest in September and lightest in February. Humidity ranges from 63% to 81%, highest in October and lowest in March. Temperature ranges from 9C to 24C, highest in April (13C to 24C) and lowest in January (9C to 19C).

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 orchids do not need to be regularly fertilised and roots may be sensitive to salt build-up, dying back and therefore impairing the plants growth or even killing it.

If fertilising, use half to quarter of the recommended amount of fertiliser. If they receive fertiliser as part of a collection, be sure to flush out the pots regularly with fresh water and monitor the roots by checking how much resistance is given by the plant when nudged in its pot or mount. If the plant becomes wobbly or loose, repot in fresh mix or rinse the media/mount thoroughly and do not fertilise for at least 3 months.

Apply fertiliser regularly at half strength year round. This plant is sensitive so apply fertiliser sparingly at one quarter recommended strength or less. Use a high Nitrogen fertiliser during Spring and Summer. Use a high Phosphorous fertiliser during Summer.

Potting

Due to the growth nature of these plants they are best mounted onto cork, tree fern slabs, or even trees if the climate suits. Water regularly especially in hot weather.

Use water retentive media such as moss to prevent roots from drying out quickly This plant does very well in baskets or suspended pots This plant does well mounted. Repotting is best done annually.