Van Bourgondien

Garden Guide Perennials

Varieties

Coneflower

See Echinacea

Convallaria

(Lily of the Valley) Plant in very early spring or fall in rich, well-drained soil in partial to full shade. Plant the fleshy rhizomes (a

Coral Bells

See Heuchera

Coral Iris

See Iris foetidissima

Coreopsis

(Golden Daisy) Plant in well-drained, ordinary soil in full sun. Space 12-24" apart. Plants are slow to appear in spring; be patient. Grows 12-18" tall. Blooms all summer to fall. Hardy in zones 3-10.

Coronilla varia

(Crownvetch) Plant in poor, dry soil in partial shade to full sun. Will grow in virtually any soil. Space 24" apart. Spreads rapidly, chokes out weeds, and is good to control erosion on slopes and roadsides. Grows 10-18" tall. Blooms May-June. Hardy in zones 3a

Cortaderia selloana

(Pampas Grass) Plant in fertile, very well-drained soil in full sun to partial shade. Space 36" apart. Some flower plumes will appear the first summer, the second year is spectacular. Water only in spring when plant begins to grow. Keep soil dry the rest of the growing season. In late winter, cut the plant to the ground. Be careful, leaf edges are very sharp. In zone 7, tie clump up in fall and mulch well. Grows 8-12' tall. Blooms late summer to fall. Hardy in zones 7a

Corydalis 'China Blue'

Plant in partial shade in either spring or fall. Prefers evenly moist, welldrained, slightly acidic soil. Space plants 12-14" apart. Blooms all summer in regions with cool summers. Otherwise, it will bloom early summer and again in the fall. Grows 12" tall and 8-10" wide. Hardy in zones 5-7.

Cote d'Azur Pinks

See Saponaria

Crambe cordifolia

(Giant Gypsophila) Plant in deep, well-drained, moderately alkaline soil in full sun. Space 3-6" apart. May require staking. Grows 8-10' tall. Blooms June-July. Hardy in zones 6-10.