Agave bracteosa 'Calamar' looks more marine-like than plant-like with long, narrow, notably spineless, bluish to apple green leaves.

Agave bracteosa 'Monterrey Frost' is a small, spineles cultivar perfect for pot culture or protected microclimates.

Agave chrysantha has long, narrow, bluish leaves with bold marginal spines. The flowers are bright yellow.

Agave deserti var. simplex is a small to medium-sized century plant with silver-blue leaves.

Agave filifera var. schidigera has green leaves marked with silver-white and with curling threads along the leaf edges.

Agave funkiana 'Fatal Attraction' offers handsome bluish green leaves striped with a mid green central band.

Narrow, emerald green, spineless leaves give Agave 'Spaghetti Strap' a unique look.

Rich green leaves with silver teeth!

Agave havardiana is a very cold hardy cactus to zone 5 with broad, impressive bluish leaves forming impressive rosettes.

'Impressive' is a beautiful selection of Agave impressa with intricate white dotted lines across the bright green leaf blades.

Agave isthmensis is a small colony-forming species with amazing, greyish blue rosettes of foliage w/ rippled edges resembling molten wax.

Agave isthmensis 'Ohi Raijin Shiro Nakafu' is a small colony-forming cultivar with beautiful ivory white and blue leaves.

Agave lechugilla has long, narrow, green leaves usually with a lighter green band down the middle. Hardy to zone 7.

Agave lophantha 'Quadricolor' is a stunning variegated century plant for those who want extra drama from their succulents.

Agave macroacantha is a beautiful medium-sized century plant with numerous bluish grey leaves each tipped with a bold black spine.

This distinctive blue agave has beautiful markings on the foliage like Baccarat crystal.

Agave multifilifera is related to A. filifera and also has chalky white markings on the leaves but with more curling white hairs on the leaf edges.

A unique agave with a light green central stripe. Great for container culture.

Agave ovatifolia 'Frosty Blue' is a cold hardy century plant with blue-green foliage also known as whale's tongue agave.

Agave palmeri is the largest species native to the United States with blue-green, lance-shaped leaves.

Agave parrasana 'Globe' forms a rounded rosettes of broad, waxy, blue leaves edged with dramatic spines.