This rare, crested cactus is a Opuntia cylindrica cristata. It is also known as a Emerald Idol or Brain Cactus. Because it looks like a brain!
It's a wibbly, wobbly cactus with a bluey-green flesh. It is covered in white spines that look like fur.
It is slow to grow.
Place in bright light. But make sure it is not in full sun as this may burn the skin.
Water only when the soil is completely dry.
Delivered in 5.5cm pot.