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

Dicentra 'Love Hearts' has ivory white bleeding hearts with pink tips and a slight fragrance. Bluish foliage.

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

Dinteranthus wilmotianus forms near spherical greyish white balls covered in subtle greyish spots and edged with yellow.

Diospyros virginiana 'Early Golden' is one of the best American persimmons with very sweet, 1.5 inch wide, orange fruit.

Diospyros virginiana 'Meader' is an excellent self-fertile American persimmon producing delicious, sweet, deep orange fruit.

Diospyros virginiana Prairie Dawn is an early-ripening American persimmon with that is very sweet, firm and delicious.

Diospyros virginiana Prairie Gem is a unique, early-ripening, seedless variety of American persimmon that is sweet and tender.

Diospyros virginiana Prairie Star is one of the earliest ripening American persimmon producing extra large, very sweet, firm, and flavourful.

Diospyros virginiana Prairie Sun is an early-ripening American persimmon with orange-yellow fruit that is very sweet, firm and delicious.

One of the only shrubs that can be grown in the shade and still produce incredible fall colour.

Fishbone or zig zag cactus (Disocactus anguliger, syn. Epiphyllum anguliger) is an epiphytic cactus from Mexico.

Disocactus (syn. Epiphyllum) phyllanthoides, offers multitudes of 3-4 inch wide rose pink flowers with pale pink centres.

Dodecatheon 'Aphrodite' is a hybrid of a North American native with reflexed pink petals with yellow and red highlights.

Dolichos lablab 'Ruby Moon' is a vine with lavender, pea-like flowers followed by large, purple pods held on purple stems amongst purple-infused foliage.

Dracunculus vulgaris is topped with a lurid 18 inch burgundy spathe with a columnar purple-black spadix.

Echinacea pallida 'Hula Dancer' has slender, reflexed, white or pink ray florets around reddish-brown cones.

Echinacea paradoxa has deep yellow, daisy-like flowers and coppery-chocolate-brown central cones.

Echinacea purpurea 'Pink Double Delight' is a shorter purple coneflower with fully-double pink flowers.

Echinacea 'Delicious Candy' has bright magenta-pink coneflowers with horizontally held petals around large, red cones on strong, well-branched stems.

Echinacea purpurea 'Double Decker' / 'Doppleganger' sports a second tier of petals which erupts from the tip of the cone.