Botanical Name: Acanthocereus tetragonus
Common Name: Castle cactus
About the castle cactus…
The castle cactus is a miniature cultivar of Acanthocereus tetragonus, native to central American regions. This lovely cactus has a gorgeous shape and will eventually get to about 1m high and 30cm high when fully grown, it will flower but it's rare indoors, flowering at night.
The castle cactus loves bright full sun to maintain it's vibrant colour, and likes to be in warm environments from 10-30°C.
However, protect her from extreme heat, as it may cause discolouration. A bit of shade is best for the afternoons during summer. Rotate the plant if she's inside to keep a nice even shape.
As a cactus, she can withstand long periods of drought so water only when the top 2 cm of the soil is dry. Watering should be greatly reduced in winter.