This is a Ferocactus glaucescens - also called the blue barrel cactus. This species is found within the numerous limestone hills and boulders at several locations in the state of Hidalgo, Mexico. It will grow into a substantial plant about 22 inches tall and 24 inches diameter,It produces yellow flowers and a white fruit.
This cactus makes a good landscape plant. It is winter hardy to 25 degrees F.
These are photos of the exact plant you will receive.
This Ferocactus is in a 4" plastic pot. All of our plants are shipped bare root (carefully wrapped with no soil and no pot).
THE PLANT IN THE PHOTOS IS THE EXACT PLANT YOU WILL RECEIVE
When you re-pot this plant, do not use a pot much larger than 4" diameter. If you put a succulent in a pot that is too large, the soil will take too long to dry since there are not enough roots to absorb the water and your plant may get root rot.
What is the difference between an cactus and a succulent? All cacti are succulents, but not all succulents are cacti. Succulents are plants that store water in their stem, leaves or root system. A true cactus has a structure called an areole. It looks like a patch of cotton from which spines, flowers, branches and roots grow. While some succulents may have spines, they will not have areoles.