Oberonia aurea

Also known as: The Golden Oberonia in the subfamily: Epidendroideae

General Information

The Golden Oberonia is a warm growing orchid belonging to the sub family Epidendroideae.

Plant Description

Grows to 0.1-12cm. Each new growth has numerous thick erect, lance shaped leaves that grow to 1.2-2cm long. Pseudobulbs grow to 0.3-12cm

Substrate(s)

• Treefern
• Spaghnum Moss

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 132mm to 302mm per day, heaviest in June and lightest in December. Humidity ranges from 80% to 84%, highest in January and lowest in May. Temperature ranges from 16C to 28C, highest in May (17C to 28C) and lowest in January (16C to 25C).

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. Reduce fertiliser when plant is dormant.

Potting

Repotting is best done in a pot the same size or only slightly larger than the previous one.