Carex pensylvanica is a fine-textured sedge for shadier spots, including dry shade, as an underplanting or lawn alternative.

Indian paintbrush (Castilleja miniata) is beautiful West Coast native with inflorescences that look like a paintbrush dipped in fiery colours.

Cautleya gracilis (syn. Cautleya lutea) is a hardy shade ginger with tropical foliage & yellow orchid-like flowers in summer.

Cautleya spicata is a hardy shade ginger with yellow orchid-like flowers emerging from red buds in summer.

Centranthus ruber has long-lasting magenta-pink to reddish pink flowers over bluish foliage.

Chrysanthemum Mammoth 'Coral Daisy' is a long-lived perennial with large, semi-double,coral-pink flowers.

Chrysanthemum Mammoth 'Yellow Quill' has lemon yellow quilled petals around a golden yellow centre.

Chrysogonum virginiana var. australe or goldenstar is a an evergreen ground cover with single yellow flowers all summer long.

Cirsium rivulare 'Atropurpureum' is a rare perennial with long-blooming, lipstick red, thistle-like flowers.

Convallaria 'Albostriata' is a special form of lily-of-the-valley with green leaves striped with yellow.

Convallaria majalis 'Bordeaux' is an improved version of the old-fashioned lily-of-the-valley with larger and more plentiful flowers.

Convallaria majalis 'Rosea' is a lily-of-the-valley with pale pink, waxy, fragrant, bell-shaped flowers.

Coreopsis tripteris is a 6 foot high tickseed producing masses of bright yellow flowers from summer to fall.

Cornus canadensis, or bunchberry, is an excellent native ground cover for part shade and loose humusy soils.

'Blue Heron' is a true blue, fragrant Corydalis with finely textured foliage.

Corydalis elata is taller, later blooming, fragrant, and does not go dormant in summer.

Corydalis flexuosa 'Royal Purple' has red-marked leaves and sky blue and light purple, fragrant flowers.

Corydalis flexuosa Hillier 'Porcelain Blue' produces clusters of fragrant, glowing blue flowers atop finely textured foliage.

Corydalis lutea has clusters of bright yellow, spurred flowers that bloom above blue-green foliage for months on end.

Corydalis ochroleuca is smothered in fragrant, creamy white, tubular flowers with yellow at the centres for months.

Cosmos atrosanguineus has flowers that smell like dark chocolate! Resistance is futile. 'Choca Mocha' cosmos is more compact with a stronger fragrance.

Crocosmia 'Colombus' has bright yellow tubular flowers in summer. A magnet for hummingbirds.

Crocosmia 'Emily Mackenzie' offers extra large, dark orange flowers with yellow throats each surrounded by a red ring.

Crocosmia 'Harlequin' has red and orange buds opening to warm yellow flowers creating a bicolor to tricolor effect.

Crocosmia 'Peach Melba' is a montbretia with vivid dark orange flowers atop tall, spiky, sword-like foliage.

Crocosmia 'Sunglow' is a montbretia with brilliant yellow flowers atop tall, spiky, sword-like foliage.

Crocosmia 'Walberton's Bright Eyes' is a cute little montbretia perfect for small gardens or the front of the border.

Crocosmia masoniorum is a giant montbretia with blazing-orange flowers. A magnet for hummingbirds and butterflies.

'Carmin Brilliant' is a stunning Crocosmia with carmine-pink flowers, scarlet-orange on the reverse and with cheery, yellow throats.

Crocosmia 'Fire Jumper' has orange-red buds opening to pale orange flowers highlighted with orange-red.