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 polianthiflora species of "Agave". It prefers a shallow, well-drained soil and regular fertilization during vegetation time. As a container plant grown in cold climates, during the winter it may be kept in a completely dark place. Agave polianthiflora Agave polianthiflora is a relatively small member of the genus Agave, in the subfamily Agavoideae, endemic to northern Mexico. The succulent is native to the States of Sinaloa, Chihuahua and Sonora. "Agave polianthiflora" produces a small basal leaf rosette of about in diameter. Leaves are narrow and lanceolate, with multiple white filaments protruding from their edges. Flowers are red and tubular, in length