Agave maintenance once established. "Agave azul" (blue agave) is used in the production of tequila. In 2001, the Mexican Government and European Union agreed upon the classification of tequila and its categories. All 100% blue agave tequila must be made from the "Agave tequilana" 'Weber's Blue' agave plant, to rigorous specifications and only in certain Mexican states. The hybridized genus ×"Mangave" is created by cross-breeding species of "Manfreda" and "Agave". The ethnobotany of the agave was described by William H. Prescott in 1843: But the miracle of nature was the great Mexican aloe, or maguey, whose clustering pyramids of flowers, towering
Agave palmeri 1.6–2 inches long and grow on branches in the upper third of the flower spike, which can be between up to 5 m (16.5 feet) tall. The plant requires a large pot but is very tolerant of a wide range of conditions, including temperatures of around –10 °C. Agave palmeri Agave palmeri (also known as Palmer's century plant) is an especially large member of the genus "Agave", in the family Asparagaceae. It is native to southern Arizona, southwestern New Mexico, Sonora and Chihuahua. The plant is also frequently cultivated as an ornamental in other regions. "Agave palmeri" is the largest