Dahlia 'Lady Darlene' has large, double, dinner plate blooms of buttery yellow and red reaching up to 10 inches wide.

Dahlia 'Mr Sandman' has huge, double blooms of yellow, orange, peach, and red.

Dahlia 'Kogane Fubuki' is a fimbriata-style, double flower with large, bright yellow and pink petals that are split at the tips.

Dahlia 'Karma Gold' has a double flower with a butterscotch centre surrounded by golden petals that fade to sherbet orange.

Dahlia 'Lake Ontario' is a stunning dahlia with fully double, golden yellow flowers edged in a rosy dark pink.

Dahlia Mystic Illusion has warm, sunny yellow single flowers atop luscious, dark burgundy, filigreed foliage.

Bright yellow flowers over burgundy foliage.

'Kasasagi' is a pompon dahlia with two inch wide honeycombed blooms of yellow and red.

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

Delosperma 'Gold Nugget' is very hardy with shining, yellow flowers in masses in spring.

Delosperma nubigenum has bright yellow single flowers that burst into colour in early summer and continue right through fall.

Delosperma Hot Cakes 'Banana Blast' creates carpets of bright yellow flowers with icy white centres.

Delosperma Jewel of the Desert 'Peridot' has citrusy yellow starry flowers with icy white centres.

Delphinium elatum 'Celebration' is a large larkspur with semi-double soft lemon to cream flowers.

Dichondra 'Silver Falls' is a tender perennial with small, shimmering, silver foliage that trails up to 4 feet.

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 Illumination 'Apricot' has gorgeous tubular flowers of light apricot-orange and warm yellow.

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

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

Diospyros kaki 'Black' Raven is a distinctive persimmon from China with unusual glossy-black fruit that is sweet and delicious.

Diospyros kaki 'Jo Choo' Cardinal is perhaps the earliest ripening of all Asian persimmon with large, tasty fruit.

Diospyros kaki 'Robin' is an early-ripening Korean persimmon with heavy crops of very sweet, flavourful, bright orange fruit.