The North Carolina Zoo is temporarily suspending operations
effective March 17 until further notice. More information.
A hidden treasure
The barrel cactus is most often found in grasslands, which can make it difficult to see unless the plant is in bloom or has maturing fruit. It is characterized by spines that are often longer than the plant is wide and huge yellow flowers that adorn the top of the stem.
The USDA Plant Hardiness Zone Map is the standard by which gardeners and growers can determine which plants are most likely to thrive at a location. The map is based on the average annual minimum winter temperature, divided into 10-degree F zones.