Vanda ampulacea – 365 days of orchids – day 844

Another orchid that starred on our London display was Vanda ampulacea. The plant is now in full flower and reminds us of our visits to Sikkim at this time of year.

The species (which is also known as Ascocentrum ampulaceum) is one of the most dramatic species we have seen flowering during our expeditions to Sikkim and seeing it in flower in the greenhouse transports me back to the those wonderful trips.

Vanda ampuilacea grows abundantly as an epiphyte in hot valleys from 200-500m altitude where it clings to trunks, branches and twigs of deciduous and semi-evergreen trees . Here it has to cope with a dry winter exposed to the sun and it does this by developing a very extensive root system that can store a lot of water. (see plant in site below)

Note the  lack of moss on the tree trunk showing the dry conditions experienced at low altitude in the dry season. We grow this species in a basket in open bark compost and keep it in Warm Asia (min 20C) for most of the year apart from a short completely dry rest in the roof of Cool Asia (minimum 10C) during February. Moving the plant back to warm conditions initiates flowering. I am really pleased to see that our plant has the same dark spotting on the tough leaves as this plant in Sikkim suggesting we have the conditions in Writhlington about perfect.


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