The Old Man Cactus, scientifically known as Cephalocereus Senilis, is named for its distinctive white, hair-like covering that brings to mind your sweet Nana or Pop Pop. This is a slow-growing cactus that thrives in bright light and requires minimal watering, making it an excellent low-maintenance choice for plant lovers. Each plant is unique; size and shape fluctuate by season so all measurements are shown as a range Medium plants measure 5" to 8" tall from the soil line to the top of the foliage Arrives in a nursery grow pot nestled in your planter choice