Dendrobium patentissimum

General Information

Dendrobium patentissimum is a sympodial orchid belonging to the sub family Epidendroideae.

Plant Description

Sympodial. Grows to 40cm. Each new growth has numerous leaves that grow to 1.9-3.2cm long. Pseudobulbs grow to 40cm

Substrate(s)

• Coarse
• Bark

Climate

Grows at low to high elevations. Rainfall ranges from 61mm to 216mm per day, heaviest in September and lightest in November. Humidity ranges from 79% to 81%, highest in January and lowest in April. Temperature ranges from 17C to 27C, highest in April (18C to 27C) and lowest in January (17C to 26C).

Watering

These orchids are sensitive to excessive watering and should only be watered when they look thirsty. Water infrequently and ensure that the roots are dry before watering. Keep an eye on them especially during hot weather as overwatering can lead to rot, whereas underwatering may result in wilting or shriveling, which while unattractive, will not kill the plant.

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.