Pulmonaria 'Opal' (Opal lungwort)
Botanical Information
Family | Boraginaceae |
Genus | Pulmonaria |
Cultivar | 'Opal' |
Synonyms | Pulmonaria 'Ocupol' |
Category | Perennials |
Details
USDA Hardiness Zone | 6 - 7 |
USDA Hardiness Ref. | |
Canadian Hardiness Zone | 6b |
Canada Hardiness Ref. | |
RHS Hardiness Zone | H6 |
RHS Hardiness Ref. | |
Temperature (°C) | (-20) - (-15) |
Temperature (°F) | 4 - 5 |
Height | 0.1 - 0.5 m |
Spread | 0.1 - 0.5 m |
Growth | Medium |
Flowering Period | May, June |
Description and Growing Information
General Description | A semi-green perennial that blooms pale blue flowers in late spring. |
Shape | Bushy. |
Landscape | Flower beds, flower borders, container. |
Propagation | Propagate by division after flowering or in autumn. |
Cultivation | Grow in humus-rich, fertile, moist but not waterlogged soil in full or partial shade. |
Pests | Be cautious of powdery mildews in dry conditions. |
Notable Specimens | Lanhydrock Gardens, England, Cornwall. |
Habitat | Horticultural origin. |