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

Convallaria majalis 'Hardwick Hall' is a lily-of-the-valley with fragrant, white bell-shaped flowers and foliage that is rimmed in yellow.

Convallaria majalis 'Hofheim' is a rare form with gold to light green edged leaves, sometimes with extra stripes.

Classic, fragrant, white flowers in spring and variegated foliage that looks good through spring, summer and fall.

Coreopsis Permathread 'Shades of Rose' is a tickseed with varying shades of pink around yellow centres.

Cortaderia 'Blue Bayou' is a dwarf pampas grass with blue foliage and classic white flower plumes on plants of a manageable size.

Corydalis 'G.P. Baker' has amazing near-red flowers atop delicate bluish-green foliage in spring.

Corydalis solida 'Purple Bird' has warm purple flowers atop delicate bluish-green foliage in spring.

Big, bold and beautiful, Crambe cordifolia is all about presence and drama with huge 6 foot high and four foot wide clouds of white flowers.

Crambe maritima has dramatic, ruffled, silver blue leaves that you can sautee and eat! Or just enjoy their beauty in the garden.

Crassula 'Hummel's Sunset' is a gold version of the jade plant with red leaf edges.

Crinum x powellii is an amaryllis relative with strap-like foliage and pink flowers at the height of summer.

Crinum x powellii 'Album' is an amaryllis relative with strap-like foliage and white flowers at the height of summer.

Crinum 'Sangria' displays glossy, textured, dark purple, tropical looking foliage is topped in summer with 18 inch spikes of rosy pink, amaryllis-like flowers.

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