Grammatophyllum scriptum

Also known as: The Written Grammatophyllum in the subfamily: Epidendroideae

General Information

The Written Grammatophyllum is a hot growing orchid belonging to the sub family Epidendroideae.

Plant Description

Each new growth has numerous leathery leaves that grow to 4.5-60cm long. Pseudobulbs grow to 6.4-20cm

Substrate(s)

• Coarse
• Medium
• Bark
• Charcoal
• Perlite

Climate

Grows at low elevations. Rainfall ranges from 86mm to 472mm per day, heaviest in January and lightest in September. Humidity ranges from 72% to 84%, highest in January and lowest in August. Temperature ranges from 21C to 31C, highest in August (22C to 31C) and lowest in October (21C to 28C).

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

Potting

Use water retentive media such as moss to prevent roots from drying out quickly This plant does very well in baskets or suspended pots Repotting is best done annually.