Dahlia 'Pink Butterfly' has 3-4 inch wide, semi-double, bi-colour flowers in pink and yellow.

'Wizard of Oz' is a pompon dahlia with small pink flowers that emerge from yellow buds.

Dahlia 'Red Empire' has magnificent, 8 inch wide, dinner plate flowers of cherry-red with ivory white tips.

'Strawberry Ice' is a huge dinner plate Dahlia with double flowers 8-10 inches wide in pink shades with yellow highlights

'Sunny Boy' is a pompom Dahlia with 2-3 inch size honeycombed blooms of yellow and orange.

Dahlia 'Wine Eyed Jill' produces lovely, ball-shaped flowers with pale peach and purple petals.

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

Darlingtonia californica is an amazing and rare carnivorous plant known as the California pitcher plant.

Delosperma Ocean Sunset 'Orange Vibe' is an ice plant with mats of orange blooms and yellow centres.

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

Delphinium 'Cinderella' is a large larkspur with triple-layered flowers in pale pink tones.

Delphinium elatum 'Mighty Atom' is a dramatic larkspur with semi-double flowers in lavender blue.

Delphinium 'Wishful Thinking' is a breathtaking cultivar with lavender double flowers edged in glowing royal blue

Delphinium 'Blue Mirror' has deep sky blue flowers with hints of lavender and small white centres on short spires up to 24" tall.

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

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

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

Dicentra Amore 'Titanium' is a bleeding heart with pure white flowers for months on end and lacy blue-green foliage.

Dierama igneum has showers of bell-shaped flowers deeply dissected into lobes in shades of magenta-red to tomato-red.

Dierama medium is an angel's fishing rod, also called lilac hairbell, with lovely bell-shaped purple to lilac flowers.

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

Digiplexis 'Rising Phoenix' is a sterile foxglove with tubular flowers of rosy-pink and light apricot hues on tall spires.

Digitalis grandiflora (ambigua) 'Cream Bell' is a yellow foxglove with palest yellow flowers and orange-brown speckled throats.

Digitalis purpurea 'Dalmatian Peach' is a common foxglove with peach-tone flowers and orange speckled throats.

Dinteranthus vanzylii is related to Lithops. It is a lovely living stone in pastel shades of grey, lavender, and peach with subtlebrownish speckling.