Spiral Cactus

Mature Cereus forbesii ‘spiralis’ like full sun, and a sunny position or window or greenhouse is ideal, but young plants like to have more shade until they are more mature.  If you are growing these Cacti behind glass though you will need to protect them from intense midday sun on very hot days in Summer, this is to prevent scorch or yellowing of the cactus skin, and a shade cloth or light net curtain can be used over glass to protect these cacti from the very hot midday sun in Summer. If you only have a north facing window that never receives any sun or growing indoors away from windows then LED Plant Grow lights especially made for plants can be used to replicate the natural full spectrum light and sunlight that these cacti need to grow and thrive.

SOIL

Cereus forbseii ‘Spiralis’ need a very well draining cactus and succulent soil that is free draining and dries out fast in between watering’s, you can use any good quality cactus soil that is ideally low in peat, but I like to make up my own Cactus soil of 3 equal parts of Loam, Grit and Horticultural sharp Sand, you can also use Pumice or Perlite or Lava Rock instead of Grit, the most important thing to remember is that the soil drains fast and dries out fast in between watering.