Origin and Habitat: This species is probably the Agave most commonly grown as an ornamental plant cultivated worldwide. Because of extensive propagation, its exact origin is uncertain although it probably came from arid areas of Mexico. It also has escaped cultivation and become established in the Mediterranean region of Africa and Europe.

• Agave milleri Haw.

• Agave americana L.
• Agave altissima Zumagl.
• Agave americana f. aureo-marginata hort.
• Agave americana var. marginata aurea Trel.
• Agave americana var. marginata alba Trel.
• Agave americana var. marginata pallida Trel.
• Agave americana var. marginata Trel. in L.H.Bailey
• Agave americana var. medio-picta Trel. in L.H.Bailey
• Agave americana nairobensis Herbin & Robins
• Agave americana var. picta (Salm-Dyck) A.Terracc.
• Agave americana f. picta (Salm-Dyck) Voss in Vilm.
• Agave ingens var. picta (Salm-Dyck) A.Berger
• Agave longifolia var. picta (Salm-Dyck) Regel
• Agave mexicana var. picta (Salm-Dyck) Cels
• Agave milleri var. picta (Salm-Dyck) Van Houtte
• Agave picta Salm-Dyck
• Agave americana var. striata Trel. in L.H.Bailey
• Agave americana var. theometel (Zuccagni) A.Terracc. in A.Terracc.
• Agave theometel Zuccagni
• Agave americana var. variegata Hook.
• Agave americana f. virginica (Mill.) Voss in Vilm.
• Agave virginica Mill.
• Agave celsiana hort. ex A.Berger
• Agave communis Gaterau
• Agave complicata Trel. ex Ochot.
• Agave cordillerensis Lodé & Pino
• Agave felina Trel.
• Agave fuerstenbergii Jacobi
• Agave gracilispina (Rol.-Goss.) Engelm. ex Trel.
• Agave salmiana var. gracilispina Rol.-Goss.
• Agave ingens A.Berger
• Agave melliflua Trel. in L.H.Bailey
• Agave milleri Haw.
• Agave ornata Jacobi
• Agave ramosa Moench
• Agave rasconensis Trel.
• Agave spectabilis Salisb.
• Agave subzonata Trel.
• Agave tingens A.Berger
• Agave variegata hort. ex Steud.
• Agave zonata Trel.

• Agave americana var. expansa (Jacobi) Gentry
• Agave abrupta Trel.
• Agave expansa Jacobi

• Agave americana subs. protamericana cv. Blue Steel

Description: Solitary or slowly clumping large leaf succulent with a basal rosette (up to 4 m wide)
Leaves: Thick and massive grey-blue up to 150-200 cm long and 25 cm wide, and have sharp spines on the margins and tips. The margin spines are recurved like fishhooks and the tip spines can be more than 2,5 cm long.
Flowers: The inflorescence of the Agave americanaSN|162]]SN|162]] is branched can reach epic proportions, soaring 3 -7 m or more, and bears large (6-10cm) yellow-green flowers. Inflorescences look like asparagus spears as they grow.
Remarks: The "Century plant" doesn't really take a century to bloom, but it does take 10 years or so in warm regions and as much as 60 years in colder climates. It dies after blooming (a condition called monocarpic), but produces offsets or "pups" throughout its life and these remain to continue the lineage.

Cultivation and Propagation: Specimens even survive in pots or in the ground in the wet winters of the south coast of England. At the other extreme it may be seen planted out in southern Arizona and Texas. They are usually cultivated outdoors in rock gardens, in cactus and succulent gardens, in Mediterranean-style landscapes, in borders, or as a specimen. Need full sun and a very well-drained, slightly acidic, sandy or gravely soil. As an ornamental it is also grown in containers where it stays much smaller than its outdoor brethren. Agave americanaSN|162]]SN|162]] is theoretically hardy to -9° C, particularly when dry and it is best to avoid severe freezing temperatures. Keep it in a cool, frost-free area in winter and put it out on the balcony or patio in summer. The Agave americanaSN|162]]SN|162]] grows fairly fast in summer if provided with copious water but allows to dry thoroughly before watering again. During the winter months, one should only water enough to keep the leaves from shriveling. They do well in full sun or a lightly shaded area.
Warning:: It can get very large, and it is armed with needle-sharp spines.
Propagation:: By suckers which often are found growing around the base of the plant, Remove the basal suckers (if available) in spring or summer and let the cuttings dry for a few days before inserting in compost.
Uses::
Scenography: These striking plants are wonderful when used for accent or simply to provide some all year round foliage and often used in a pot as a patio plant, can be moved around to change the scenery or position to give more shelter
Medicine:: The sap of century plant is used as a diuretic and a laxative. The juice of the leaves is applied to bruises and taken internally for indigestion, flatulence, constipation, jaundice and dysentery
Food:: The flower stalk and heart of century plant are sweet and can be roasted and eaten. The seeds are ground into flour to make bread and to use as a thickener for soups.
Alcoholic drinks:: If the flower stem is cut without flowering, a sweet liquid called agua miel ("honey water") gathers in the heart of the plant. This may be fermented to produce a beer-like drink called pulque, which may then be distilled to produce mezcal.
Fibres:: The leaves also yield fibres, known as pita, which are suitable for making rope, matting, coarse cloth and are used for embroidery of leather in a technique known as piteado.