Dendrobium crassulum

Also known as: Cadetia crassula in the subfamily: Epidendroideae

General Information

Dendrobium crassulum is a sympodial warm growing orchid belonging to the sub family Epidendroideae.

Plant Description

Sympodial. Grows to 1-2cm. Each new growth has numerous leathery oblong shaped leaves that grow to 0.5-1.2cm long. Pseudobulbs grow to 0.4-2cm

Substrate(s)

• Coarse

Climate

Grows at high elevations. Rainfall ranges from 51mm to 272mm per day, heaviest in September and lightest in December. Humidity ranges from 67% to 74%, highest in September and lowest in February. Temperature ranges from 16C to 28C, highest in April (18C to 28C) and lowest in January (16C to 27C).

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 during Spring.

Potting

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