'Mom's Special' is a dinner plate dahlia with two-toned colors of white with violet accents on petals that twist and curl.

'Taffarel' is a miniature pompon dahlia with 4 inch wide, ivory white flowers with a hint of cream at the centres.

Daphne 'Eternal Fragrance' has sweet, tropical, baby powder perfume and constant bloom from April to November.

Daphne 'Perfume Princess White' is an amazing hybrid with an extremely long bloom period of intensely sweet, citrusy fragrance.

Davidia involucrata is a must-have collector's item for woody plant enthusiasts with a floral display like no other tree.

Decumaria barbara is an unusual eastern North American hydrangea relative known as woodvamp that is great in the shade.

Deinanthe bifida is a rare hydrangea relative with beautiful foliage and cool, white flowers.

Delosperma Hot Cakes 'Banana Blast' creates carpets of icy white flowers.

Pure white flowers form shining starry carpets.

Delphinium New Millennium 'Black Eyed Angels' blooms with dense spikes of frilly, pure white, single flowers with pure black centres.

Delphinium New Millennium 'Double Innocence' blooms with dense spikes of pure white, frilly, double flowers.

Delphinium New Millennium 'Green Twist' blooms with dense spikes of frilly white flowers with streaks of green.

Deutzia 'Yuki Snowflake' is a fuzzy deutzia shrub with white, cherry-blossom-like flowers and green foliage with fall colours.

Dianthus American Pie 'Key Lime Pie' has pure white flowers with a greenish central eye and tons of spicy fragrance.

Dianthus Constant Cadence 'Milk Cherry' produces fragrant, semi-double flowers that transition from white through shades of pink to red.

Dianthus 'Dancing Geisha' has long, fringed petals in white, pink, rose, and lavender atop blue-green foliage.

'Fancy Knickers' - a dianthus that will titillate with flirty double white flowers.

Dicentra canadensis is an exquisite woodland ephemeral with blue-grey, ferny foliage and pink tinged white flowers like a tiny bleeding heart.

Dicentra cucullaria is an ephemeral species with unusually shaped blooms that are long, waxy, and white with yellow tips.

Dicentra spectabilis 'Alba' is the pure white form of the classic bleeding heart.

Dicentra 'White Gold' is white hot with pure white bleeding hearts arching over lustrous gold foliage. Awesome.