|Caladium "Carolyn Wharton"|
Green and rose leaves with red veins. Frost tender, tuberous perennial for the tropical border or pot.
|Caladium "Frieda Hemple"|
Large, heart-shaped, red-pink leaves with green edges. Frost tender, tuberous perennial for tropical border or pot.
|Caltha palustris "var. alba"|
White form of marsh marigold. Single flowers with yellow centres over mound of round leaves.
|Camassia quamash (syn esculenta)|
Rich, dark purple-blue flowers with bright yellow stamens. Borders or in rough grass.
|Campanula "Royal Wave"|
Upward-facing, violet-blue, cup-shaped flowers with white centres. Neat habit.
|Campanula glomerata "Caroline"|
Very large, lilac-blue flower heads on sturdy stems. Upright habit.
|Campanula persicifolia "Blue Bloomers"|
Large, double blue flowers on upright stems.
|Campanula persicifolia "Cornish Mist"|
Lovely, pale grey-blue, bell-shaped flowers.
Spreading stems bearing large, light violet-blue flowers. Vigorous.
Spikes of lilac-blue, bell-shaped flowers.
|Campanula trachelium "Bernice"|
Double, deep violet-blue flowers. Upright habit.
|Campanula trachelium "Purple Break"|
Long heads of purple-violet bells.
|Campanula trachelium var Alba|
Spires of white bells.
Attractive, dark purple, striped foliage. Bright orange flowers.
Pretty, bright pink flowers.
|Cautleya gracilis (syn lutea)|
Member of ginger family. Yellow flower spikes with red bracts.
Member of ginger family. Orange-yellow spikes with red bracts.
Attractive deeply-cut foliage looks good all year. Sprays of tiny white flowers.
|Centaurea "John Coutts"|
Dainty pink flowers over silver foliage. Good over edge of low walls or front of border.
|Centaurea montana "Grandiflora"|
Deep violet-blue cornflowers with purple centres. Deadhead for second flush of flowers.
|Centaurea montana "Parham"|
Large, lavender flowers over grey-green leaves.
Masses of large, yellow thistle-like flowers.
Giant scabious. Large, pale yellow flowers.
|Cerinthe major var. purpurascens|
Tubular yellow and purple flowers with purple bracts. Attractive blue-green leaves. Annual.
Low-growing herbaceous perennial with spreading roots. Clusters of rich blue flowers. Leaves turn red or purple in autumn.
|Chelone oblique syn alba|
Upright stems of large, white, hooded flowers.
|Chiastophyllum oppositifolium "Jim's Pride"|
Cream-edged evergreen foliage. Arching chains of yellow flowers. Mat-forming.
|Chionodoxa luciliae "Rose Queen"|
Large, starry, white-centred, violet-rose flowers.
Evergreen, rush-like perennial. Dark brown spikes.
|Chrysanthemum "Clara Curtis"|
Sprays of single, clear pink flowers.
|Chrysanthemum "Mary Stoker"|
Sprays of soft apricot-yellow flowers.
|Chrysanthemum "Nantyderry Sunshine"|
Sprays of small, bright yellow, semi pom-pom flowers. Easy.
Late-flowering hardy chrysanthemum. Mid pink, double pompons. Upright form.
|Chrysanthemum "Lady in Pink"|
Hardy chrysanthemum. Single, pale pink flowers.
White-tinged green flowers - a bit like shaving brushes! Increases by sending out runners.
|Cichorium intybus "Roseum"|
Rose-pink flowers on tall stems in late summer.
|Cichorium intybus alba|
White Chicory. Long branched spikes of pure white flowers over a long period.
|Cirsium rivulare "Atropurpureum"|
Large, deep pink thistle heads Sun or part shade. Prefers some moisture.
|Claytonia sibirica f albiflora|
Pretty ground cover. New leaves are bronzed and glossy. White flowers.
Pink to white flowers.
Small clusters of brilliant blue flowers.
|Coniogramme japonica "'Flavomaculata'"|
Branched, ribbon-shaped fronds highlighted with horizontal yellow-green bands, most pronounced in new growth.
|Convallaria majalis var rosea|
Pink lily-of-the-valley. Scented flowers. Easy.
|Coreopsis lanceolata "Walter"|
Dwarf form, producing long succession of golden, daisy-like flowers with wine-red centres.
|Corydalis "Tory MP"|
Bright blue flowers over ferny foliage. Easy and vigorous.
|Corydalis "Sylvia's Castle Haven"|
Navy blue flowers over ferny foliage.
Grey-green, ferny foliage. Pink-purple flowers.
|Corydalis solida "Beth Evans"|
Pink flowers over ferny, blue-grey foliage.
|Corydalis solida "George Baker"|
Tuberous, herbaceous perennial. Deep brick-red flowers over grey-green foliage.
|Corydalis temulifolia "Chocolate Stars"|
Bronze foliage with speckled white edges emerges in winter. Pale lavender flowers.
Branched sprays of small, scented white flowers over large, dark green leaves.
|Crocosmia "Emily MacKenzie"|
Large, dusky orange flowers with dark red centres.
|Crocosmia "George Davison"|
Upright, light gold, freesia-like flowers. Clump-forming.
Sprays of brilliant red flowers on upright stems.
New introduction. Large, bright golden-yellow flowers.
Long, branched sprays of upward-facing, brilliant orange-red flowers on stems.
|Cyclamen hederifolium "Amaze Me"|
Pure white flowers. Silvered dark green foliage.
|Cynara cardunculus "Cardoon"|
Known as Globe Artichoke or Cardoon. Huge silver-grey leaves, stout stems topped by enormous prickly purple thistle-heads.