Cerulean

This giant cactus grows up to 138 feet (42.1 meters) tall. It splits randomly along the body to form 4 finger-like stems. Each stem is red, and is dotted with small cream spines. The cuboid body is yellow, and is covered in copious amounts of rigid purple spines.

It is very fast growing, taking 9 months to reach maturity. Once mature, and only under the right conditions, several flowers with each petal a slightly different shade of turquoise grow at the top, reappearing after 3 years, but only when the conditions are right again. The flower head is shaped like a cup made up of 11 tightly layered, round-tipped petals. It has an intensely strong scent that smells like fresh linen.

The cactus's skin is extremely thick, the sky blue flesh is rough, and the amber sap is thin and causes diarrhea if consumed.