Dendrobium hallieri

Also known as: Hallier's Dendrobium in the subfamily: Epidendroideae

General Information

Hallier's Dendrobium is a sympodial orchid belonging to the sub family Epidendroideae. It is named after the German Botanist in Borneo early in the 1900's.

Plant Description

Sympodial. Grows to 30cm. Each new growth has numerous oblong shaped leaves that grow to 5-13cm long. Pseudobulbs grow to 30cm

Substrate(s)

• Coarse

Climate

Grows at low to high elevations. Rainfall ranges from 165mm to 389mm per day, heaviest in November and lightest in July. Humidity ranges from 79% to 87%, highest in October and lowest in July. Temperature ranges from 16C to 25C, highest in May (17C to 25C) and lowest in January (16C 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

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 year round. Apply fertiliser regularly at half strength year round. 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.