Origin and Habitat: Garden form known only in cultivation.

• Agave americana f. aureo-marginata hort.
• Agave americana var. marginata aurea Trel.

• 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 succulent rosette that will grow to a height of 90-120 (150). The arching leaves are characteristically variegated and have a broad creamy yellow band down the sharp-spined margins of each leaf, with grey-blue centres.

Bibliography: Major references and further lectures
1) Urs Eggli, Leonard E. Newton “Etymological Dictionary of Succulent Plant Names” Springer Science & Business Media, 29 June 2013
2) Irish, Gary “Agaves, Yuccas, and Related Plants: A Gardener's Guide”. Timber Press 2000.
3) Howard Scott Gentry “Agaves of Continental North America” University of Arizona Press, 01 February 2004
4) M. D. Dassanayake “A Revised Handbook of the Flora of Ceylon”, Volume 14 CRC Press, 01 June 2000
5) Wikipedia contributors. "Agave americana." Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, 4 Jun. 2016. Web. 19 June 2016.

Cultivation and Propagation: This is a very popular cultivar but it is relatively slow to grow and propagate, it tend to do less well than the standard blue-grey species plant, hence the price. They do well in full sun or a lightly shaded area.
In winter watering this plant can be done once every 1-2 months, there is no need to mist the leaves. Agave americanaSN|162]]SN|162]] is theoretically hardy to -9° C , particularly when dry but this cultivar is more tender and it is best to avoid severe freezing temperatures.
Propagation: Exclusively by suckers Remove the basal suckers (if available) in spring or summer and let the cuttings dry for a few days before inserting in compost.
Use:: These striking plants are wonderful when used for accent or simply to provide some all year round foliage colour and often used in a pot as a patio plant, they make an eye-catching statement and along with other evergreen plants in pots, can be moved around to change the scenery or position to give more shelter.