Agave horrida, commonly known as Mexcalmetl, is an evergreen succulent plant native to the semi-arid highlands and rocky areas of Central and Southwest Mexico. It typically grows to a height of 0.5-2 feet (0.15-0.6 meters) and a width of 2-3 feet (0.6-0.9 meters). This agave species forms a rosette of thick, spiny leaves that are a striking blue-green color, with the leaf margins armed with sharp spines. The yellow flowers, which appear on tall stalks in the spring, are quite showy and attract pollinators such as bees and hummingbirds.

Agave horrida is valued for its drought tolerance and architectural form, making it a popular choice for xeriscaping, rock gardens, and as a focal point in succulent collections. It is also used in the production of mezcal, a traditional Mexican spirit. This plant thrives in full sun and requires very little water once established, making it an excellent choice for water-wise gardens. It prefers well-draining soils and is tolerant of poor soil conditions. While generally low-maintenance, it is susceptible to root rot if overwatered. Agave horrida is not cold-hardy and should be protected from frost.CC BY-SA 4.0