Dendrobium poissonianum

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

General Information

Poisson's Dendrobium is a sympodial orchid belonging to the sub family Epidendroideae. It is named after the American Nurseryman.

Plant Description

Sympodial. Grows to 9-15cm. Each new growth has numerous leaves that grow to 3.6-5.5cm long. Pseudobulbs grow to 3-10cm

Substrate(s)

• Coarse

Climate

Grows at low to high elevations. Rainfall ranges from 67mm to 290mm per day, heaviest in July and lightest in March. Temperature ranges from 13C to 24C, highest in July (20C to 24C) and lowest in February (13C to 19C).

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.

During Spring, be sure to keep media moist. Keep moisture levels up during hot weather as the plant is prone to dehydration

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.

Apply fertiliser regularly at half strength year round. Use a high Nitrogen fertiliser during Spring and Summer. Use a high Phosphorous fertiliser during Summer.