Stelis tarantula

Native to: Antioquia - Colombia Departamento del Huila - Colombia Ecuador

General Information

Stelis tarantula is a cool growing epiphytic orchid belonging to the sub family Epidendroideae native to Colombia and Ecuador.

Plant Description

Each new growth has a single leathery erect, rigid leaf that grows to 1.5-22cm long. Pseudobulbs grow to 15-20cm

Flowers

Numerous blossoms appear during Autumn and Spring

Blooming Season

• Autumn
• Spring

Substrate(s)

• Coarse
• Medium
• Bark
• Treefern
• Spaghnum Moss
• 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

Grows at high elevations. Rainfall ranges from 64mm to 196mm per day, heaviest in May and lightest in December. Humidity ranges from 69% to 77%, highest in October and lowest in January. Temperature ranges from 12C to 27C, highest in March (14C to 27C) and lowest in June (12C to 24C).

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.

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 are quite forgiving and will do well repotted ever 2-3 years. The mix should be coarse, well draining, and allow space for air to move and for roots to grow. 

Alternatively, these plants will also do well mounted to tree fern or cork slabs, or mounted to trees.

Best time for repotting or mounting the orchids is the end of winter when new growths start to appear. Avoid repotting during 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 and in a pot the same size or only slightly larger than the previous one.