Dendrobium macrum

Also known as: Dendrobium isochiloides var. pumilum Dendrobium isochiloides var. isochiloides Dendrobium isochiloides Monanthos macer Monanthos isochiloides in the subfamily: Epidendroideae

General Information

Dendrobium macrum is a sympodial hot growing orchid belonging to the sub family Epidendroideae.

Plant Description

Sympodial. Grows to 15-20cm. . Pseudobulbs grow to 15-20cm

Substrate(s)

• Coarse

Climate

Grows at low to high elevations. Rainfall ranges from 122mm to 429mm per day, heaviest in October and lightest in February. Humidity ranges from 78% to 82%, highest in July and lowest in April. Temperature ranges from 19C to 27C, highest in January (20C to 27C) and lowest in January (19C to 26C).

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 year round. Apply fertiliser regularly at half strength year round. Reduce fertiliser when plant is dormant during Spring.

Potting

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