Dahlia imperialis is the giant "tree dahlia" that reaches 10-20 feet tall with late late lavender blooms 3-4 inches wide.

Dahlia 'Addison June' has dark purple to magenta pompon-type flowers that form honeycombed spheres 3 inches wide.

Dahlia 'Bishop of Leicester' has lavender single flowers highlighted with pink atop rich, burgundy foliage.

From the Happy Single series, Dahlia 'Wink' has single, lilac-purple flowers with dark pink centres over burgundy foliage.

Dahlia 'Blue Bell' has large 4-6 inch size double blooms of purple-blue that fade to lavender-blue.

Dahlia 'Bluetiful' is the closest to blue a dahlia has yet achieved with large, double, lavender-blue flowers.

Dahlia 'Cloudy Sky' has large six inch wide double blooms of ivory-white and reddish magenta.

Dahlia 'Gogo Two-Tone Purple/White' has purple-pink blooms edged in white on compact plants.

Dahlia 'Mystery Day' is a decorative dahlia with large, 6-8 inch wide purplish-red blooms tipped in white.

Dahlia 'Almand's Joy' has large double blooms of pink, lavender, and white reaching 8 inches across.

Dahlia 'Penhill Dark Monarch' has large double blooms of purples and pinks reaching 8-10 inches.

Dahlia 'Alauna Clair Obscur' is a fimbriata type with feathery purple petals that fade to magenta with white, fringed tips.

The Gogo series of dahlia produce large flowers that are 4-5" wide. 'Gogo Blues' is an entrancing lavender-blue.

'Blackberry Ripple' is a semi-cactus type dahlia with lavender and purple flowers.

'Marble Ball' is a dahlia with ball-shaped flower heads in a crazy pattern of purple and white.

Dahlia 'Twyning's Smartie' has bold, bi-coloured, single flowers of white and magenta with yellow centres.

'Mingus Randy' is a cactus-shaped dahlia with lavender and white flowers.

Dahlia 'Optic Illusion' has 4-6 inch wide blooms in amazing patterns of white, lavender, purple, pink, and magenta!

Dahlia 'Vancouver' has 10 inch wide, dinner plate flowers in purple-red with white edges around green centres.

Dahlia 'Wink' has single, purple and red bicolour flowers above rich, burgundy foliage.

Daphne genkwa 'Hackenberry Group' is a rare daphne with beautiful lavender flowers in spring.

Daphne odora 'Sweet Amethyst' blooms in February/March with purple buds opening to lusciously fragrant, lilac-purple flowers.

Lavender Ice is a colour breakthrough in Delosperma with iridescent lavender daisies with a darker lavender eye and a yellow centre.

Delosperma Ocean Sunset 'Violet' is an ice plant with mats of violet blooms and yellow centres.