Delphinium New Millennium 'Sweetgeart' blooms with dense spikes of dark and light pink flowers.

Dendranthema zawadskii 'Clara Curtis', previously known as a Chrysanthemum, is a hardy garden mum with pink flowers and yellow centres.

Deutzia 'Yuki Cherry Blossom' is a fuzzy deutzia shrub with pink cherry-blossom-like flowers and green foliage with fall colours.

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

Dianthus carthusianorum is an unusual pink species with tall, airy, two foot stems with clusters of dark purple buds and bright pink flowers.

Dianthus ‘First Love’ has intensely fragrant flowers that change from white through pink to deep rose-pink as they age.

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.

Dianthus Devon Cottage 'Pinball Wizard' has fragrant, double, pale pink flowers boldly streaked and speckled with magenta pink.

Dianthus 'Rosy Cheeks' is best grown with 'Fancy Knickers' for a flirty pink and white garden affair.

Dianthus 'Ruby's Tuesday' has blue foliage and deep red, fragrant flowers for a romantic front of the border display.

'Waterloo Sunset' has fragrant, glowing magenta, double dianthus flowers on blue foliage.

Dianthus Fruit Punch 'Black Cherry Frost' has fragrant, semi-double, red flowers with serrated white to pink picotee edges.

Dianthus Fruit Punch 'Spiked Punch' has fragrant, fully-double, raspberry-pink flowers with heavily fringed petals and silver-blue foliage.

Dianthus 'Appleblossom Burst' has fragrant, heavily ruffled, double flowers in white gradually deepening through various pinks.

Diascia integerrima 'Coral Canyon' is a twinspur with rose-pink flowers that bloom all summer long until frost.

The Pacific or western bleeding heart (Dicentra formosa) is a lovely shade with fern-like foliage and pendulous pink flowers.

Firecracker flower (Dichelostemma ida-maia) has cool red, green and white tubular flowers held in clusters.

Dichelostemma 'Pink Diamond' has lavender-pink, light pink and white flowers.

Dichroa febrifuga 'UBC Form' is a rare hydrangea relative with clusters of pink or blue flowers followed by long-lasting metallic, purplish berries.

Dicliptera suberecta is commonly known as the firecracker or hummingbird plant with nectar-filled, deep orange flowers.

Diervilla Honeybee is a beautiful, super hardy shrub with brilliant gold leaves and tubular yellow flowers popular with bees and butterflies.

Diervilla Firefly Nightglow is a super hardy shrub with burgundy leaves and clusters of yellow flowers popular with bees and butterflies.

Digiplexis 'Firecracker' is a foxglove hybrid with orange-yellow flowers with rosy overtones and gray-green foliage.