Agave atrovirens, commonly known as Maguey Verde Grande, is an evergreen succulent native to the semi-arid highlands and volcanic soils of central Mexico. It is the largest of all the Agaves, with mature plants occasionally reaching a weight of two long tons (2 metric tonnes). Each robust, fleshy leaf can be up to 14 feet 9 inches (4.50 meters) in length and weigh one hundred pounds (45 kg) apiece, forming a dense rosette. After many years, a tall flower spike, resembling a giant asparagus stalk, emerges from the center of the rosette, eventually reaching over forty feet (more than 12 meters) in height. It develops side branches near the top, adorned with numerous flowers that open red and gradually turn yellow. Each rosette blooms once, sets fruit, and then dies, a characteristic known as monocarpic.

Maguey Verde Grande is valued for its dramatic architectural form and is often used as a focal point in xeriscapes, rock gardens, and large open spaces. It is drought-tolerant, requiring very low amounts of water, and thrives in well-draining soils with medium to fast drainage. Full sun exposure is ideal to maintain its health and vigor. While it is generally low-maintenance, its massive size at maturity should be considered when planting, as it needs ample space to accommodate its spread. Agave atrovirens is also culturally significant in Mexico for the production of pulque, an alcoholic beverage. Potential problems include agave snout weevil infestation, which can be mitigated by maintaining plant health and monitoring for early signs of damage.CC BY-SA 4.0