Carica papaya is a tropical fruit-bearing tree well-known for its edible, melon-like papaya fruits that are yellow to orange and very tasty.

Carica 'T.R. Hovey' is a dwarf, self fertile papaya that can produce delicious, ripe fruit within 9-12 months!

Carpenteria californica 'Elizabeth' offers open clusters of ruffled white flowers centred with spheres of yellow stamens.

Caulokaempferia sikkimensis is an orchid ginger with bright green paddle-shaped leaves tubular white flowers with pink throats.

Ceanothus velutinus is a beautiful white-flowered species related to the California lilacs with aromatic foliage.

The ornamental buds of Centaurea montana ‘Amethyst in Snow’ burst into flower with silky, pure white petals that radiate in a starburst from deep royal purple centres.

Centranthus ruber 'Alba' sports greyish-green, somewhat fleshy leaves, and masses of white flowers over a long period from spring through summer.

Ceropegia woodii 'Silver Glory' is an extra silver version of string-of-hearts.

Ceropegia woodii 'Variegata', the variegated string of hearts or VSOH, is a rare houseplant with bluish variegated hearts flushed with pink.

A beautiful white turtlehead for late summer. Chelone glabra has strong upright stems and grows in a range of light conditions.

Chelone 'Black Ace' has beautiful white turtlehead flowers in late summer. New foliage is deep green with a blackish cast.

Chionanthus virginicus, known as the fringe tree, is a unique shrub or small tree with unique fragrant white flowers.

Chionodoxa luciliae 'Alba', glory-of-the-snow, is one of the first bulbs to bloom in spring with its pure white flowers.

Chloranthus japonicus is an unusual and rare shade perennial with cool foliage and feathery white flowers like "electrocuted pipe cleaners".

Chloranthus serratus is an unusual and rare shade perennial with cool foliage topped with two little spikes white flowers.

Choisya 'Bluestone' is a Cistus Nursery introduction with finely textured, linear leaflets in shades of greenish blue.

Choisya 'Goldstone' is a Cistus Nursery introduction with finely textured, linear leaflets in shades gold and lime green.

Chrysosplenium macrophyllum is a rare groundcover with leathery leaves, burgundy when young, and fragrant clusters of white flowers.

Cistus x hybridus Little Miss Sunshine forms mounds gold variegated leaves topped with pure white, rose-like flowers in summer.