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

'Mr Ripple' is a fantastic agave with wide, blue-green undulating leaves.

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

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

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

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

Agave parryi var. huachucensis is a dramatic form with bluish-grey succulent leaves held in tight artichoke-like rosettes.

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

Agave utahensis ssp. kaibabensis is the largest and most cold hardy subspecies of the Utah century plant tolerating zone 5 winters.

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

Delosperma Ocean Sunset 'Orange Glow' is an ice plant with mats of orange blooms with hot pink tips and bright yellow centres.

Delosperma Jewel of Desert 'Amethyst' is an ice plant with bright magenta flowers with white centres.

Delosperma nubigenum has bright yellow single flowers that burst into colour in early summer and continue right through fall.

Lewisia 'Constant Comment' is an evergreen succulent with pink flowers on compact mounds.

Lewisia 'Little Raspberry' is a hardy evergreen succulent with dark pink flowers and red centre accents  above evergreen succulent rosettes.

Lewisia 'Elise' forms evergreen succulent rosettes topped with a rainbow of colours.

Lewisia 'Rainbow' produces evergreen succulent rosettes topped with a rainbow of colours.

Orostachys 'Chinese Hat' is a succulent hybrid that forms succulent rosettes of pale silver/grey foliage with yellow flowers.

Orostachys japonica is a hardy rosette succulent with many cylindrical, pointed, light green leaves that can flush orange.

Sedum 'Banana Split' has blue-green, burgundy-infused leaves and creamy white and yellow flowers on red stems.

Sedum 'Pinky' is a darling stonecrop with pink new growth and variegated edges.

Sedum 'Thunderhead' is an upright stonecrop with billowing heads of deep pink flowers atop lush, succulent, multicoloured foliage.

Sedum Rock 'N Grow 'Boogie Woogie' is an exciting, variegated sport with a tidy, compact habit.

Sedum spathulifolium 'Carnea' is creeping stonecrop with small rosettes of silver-grey to red succulent leaves and yellow starry flowers.

Sedum spurium 'What a Doozie' is a vigorous, mat-forming stonecrop with variegated leaves edged with yellow and creamy white.

Sedum Sunsparkler 'Dazzling Dynamite' has dramatically variegated leaves in shades of glowing pink, orange, yellow, and purple.

Sedum SunSparkler 'Firecracker' is a hardy stonecrop with luscious red foliage and deep pink flowers.

Sedum Sunsparkler 'Lime Twister' has bright green leaves with lime green edges and tints of pink highlights especially in cool weather.