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

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

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

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

Agave 'J.C. Raultston' has a particularly beautiful form of wide, bluish grey, succulent leaves and greater tolerance of wet winters.

Agave parryi var. truncata is a dramatic, bluish-grey succulent with tight artichoke-like rosettes and shorter leaves than other forms.

Agave 'Desert Diamond' is a striking, variegated, dwarf agave with green and cream foliage perfect for container culture.

Agave schidigera 'Royal Flush' is a dwarf, variegated Century Plant with lance-shaped leaves edged in creamy yellow with dark green centres.

Agave striata, the narrow leaf century plant, is a hardy species with very thin, almost wiry, green to blue-green leaves.

Agave tequilana 'Weber's Blue' is the species used to make the famous and classic liquor from Mexico: tequila!

Agave utahensis ssp. eborispina is a dramatic, super hardy, small agave with the longest terminal spines of the subspecies up to 4 inches long!

Agave utahensis or Utah Agave is one of the hardiest of all century plants.

Agave 'Shadow Dancer' is a stunning century plant with two tone mid-green and pale-green leaves fading to creamy white.

Menacing serrations and variegated foliage make Agave xylonacantha 'Frostbite' a memorable and extremely desirable succulent

'Joe Hoak' is a spectacular variegated Agave with green and silver streaked leaves edged in creamy yellow.

Agave 'Little Penguins' is a cute dwarf century plant with many linear, bluish leaves each tipped with a prominent black spine.

'Black Scallop' bugleweed has scalloped, dark burgundy-black foliage and blue flowers in spring.

Ajuga 'Dixie Chip' has cute little leaves in shades of green, cream and rosy-purple. A great groundcover for small situations.

Ajuga Feathered Friends 'Cordial Canary' is a semi-evergreen bugleweed with bright gold foliage and cobalt-blue flowers.

Ajuga Feathered Friends 'Fierce Falcon' is a semi-evergreen bugleweed with glossy, purple to black foliage and cobalt-blue flowers.

Ajuga Feathered Friends 'Noble Nightingale' is a semi-evergreen bugleweed with metallic black leaves and cobalt with blue flowers.

Ajuga Feathered Friends 'Parrot Paradise' is a semi-evergreen bugleweed with yellow, orange, and red leaves with blue flowers.

Ajuga Feathered Friends 'Petite Parakeet' belongs to the Feathered Friends series. An evergreen bugleweed in shades of yellow, red and green leaves with cobalt with blue flowers.

Ajuga Feathered Friends 'Tropical Toucan' is a semi-evergreen bugleweed with golden yellow leaves with blue flowers.