Cactus Acanthocereus Tetragonus:
It belongs to the cactaceae family and is native to Central America. Its common name is Fairy Castle, due to the way it arranges its branches. It's my new acquisition. I have grown this cactus before but it didn't turn out well.
It's a slow-growing cactus and does not exceed one meter in height. Its stem is light green. It grows in the form of a column, where its highest branch is located in the center, and the smallest ones are placed on the sides.
Its branches have multiple white thorns. Its central stem produces small stems around it, always straight, closely attached to its central stem. The stems have five sides. In the external corner of each of its sides, it presents its thorns, short and very sharp. It's acquiring a castle shape, hence its name as a fairy castle.
It tolerates semi-shade but likes sun exposure more, but it has to be done with caution. Direct exposure to the sun makes the moisture damage its roots and stems, rotting the plant. This is why my old fairy castles did not prosper because the humidity filled them with fungus and, sadly, killed my cactus.
It multiplies through its stems. They can be cut from their outer and lower stems, allowed to heal for a week and then transplanted. Its reproduction is not difficult. The problem is keeping it away from moisture and fungus.
There is no need to spray water on its stems, only on the substrate. And it should not receive water until the substrate is dry. This substrate must have good drainage.
It is a good cactus to be grown by beginners, but you have to be very careful with the water. Finally, this cactus roots easily and you can see it quickly adapt to the environment.
I only have one cactus. That round variety with thorns all over. I acquired it from the school unattended due to long vacation. I like small plants. I think i will start collecting since i have one already.