Cymbidium erythrostylum

Also known as: The Red Column Cymbidium or Cymbidium erythrostylum h.f. album Cymbidium erythrostylum f. luteoalbum Cyperorchis erythrostyla in the subfamily: Epidendroideae

General Information

The Red Column Cymbidium is a cool growing epiphytic orchid belonging to the sub family Epidendroideae.

Plant Description

Grows to 45-50cm. Each new growth has numerous arching oblong shaped leaves that grow to 45cm long. Pseudobulbs grow to 6cm

Flowers

Numerous long lasting blossoms appear during Summer and Spring

Blooming Season

• Spring
• Summer

Substrate(s)

• Coarse
• Medium
• Small
• Fine
• Bark
• Charcoal
• Treefern
• Spaghnum Moss
• Perlite
• Sand

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 high elevations. Rainfall ranges from 5mm to 257mm per day, heaviest in September and lightest in January. Humidity ranges from 64% to 84%, highest in September and lowest in February. Temperature ranges from 11C to 27C, highest in April (16C to 27C) and lowest in January (11C to 23C).

Watering

These orchids prefer a constant supply of moisture, with a slight drying out between waterings. Saucers can be placed under pots to retain moisture during hot weather, however the saucers should be removed or let to dry every 1-2 weeks to prevent rot. Keep an eye on the plant especially in hot weather and look for cues of under/overwatering and adjust accordingly.

Fertiliser

These plants thrive on fertiliser, especially during periods of growth. Liquid fertiliser can be applied year round at the recommended strength, augmented with manure pellets or other quickly degradable fertiliser, applied away from the base of the plant, during periods of strong growth. Slow release pellets can also be applied year round at the rate of 2-3 pellets per cup (250ml) of media.

They can benefit from a high phosphate fertiliser leading up to flowering season, and by a high nitrogen fertiliser when new growth appears. 

Use balanced fertiliser year round. Be sure to flush out excess fertiliser by running water through the media regularly year round. Fertiliser can be applied heavily year round. Use a low Nitrogen fertiliser during Winter. Use a high Phosphorous fertiliser during Winter.

Potting

It's best to observe the root system when repotting and use that as a guide:

A plant with a short root system will do better in a shallower pot with a fine mix, or mounted on fern or cork supplanted with a good amount of moss or similar material.

A plant with a long root system often does well in a pot filled with moss or fine media, mixing in perlite and charcoal is always beneficial to reduce the likelihood of the mix becoming soggy and keeps it fresh.

A plant with a coarser long root system can be potted in a deeper pot, but with 2/3 coarse material such as bark, expanded clay, or coco chips and topped with moss or similar material. This will allow the moisture to remain inside the pot but give the roots air as well.

Use water retentive media such as moss to prevent roots from drying out quickly Repotting is best done annually.