Greatly variable in size. An average adult plant is about 15cm across and 12 cm high. In bloom, specimens sometimes grow twice that size. Petals are blue, lineal forming a tube 3 – 4 cm long from which the stamens protrude. It will grow well in a terrarium. It likes moderate humid and bright conditions. It can be positioned horizontally or upside down to help prevent possible rot. A recommended species.