About
Harvington Evening Star' is a tuberous perennial, maturing to about 30cm tall, with fairly broad, upright, green, stem-clasping leaves. The deep purple flowers, with white eye, appear in early to midsummer.
About the genus
Roscoea are tuberous perennials with arching, linear or lance-shaped leaves and showy orchid-like flowers in summer or autumn
Growing conditions
SunlightPartial shade
Soil typeClay, Loam
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained
AspectNorth-facing, West-facing, East-facing
ExposureSheltered
UK hardinessH5
Plant details
Plant typeHerbaceous Perennial
HabitClump forming
FoliageDeciduous
Height0.1-0.5 metres
Spread0.1-0.5 metres
Time to full height2-5 years
Suggested usesCottage and informal garden, Patio and container plants, Rock garden
Care notes
CultivationGrow in humus-rich, moderately fertile, moist but well-drained, preferably neutral soil. A cool, sheltered site in partial shade is ideal, but will tolerate sunnier spot if the soil is moist. In very cold areas apply a dry winter mulch such as bark. If growing from a tuber, plant 15cm deep
PruningRemove faded flowers, let the rest of the plant will die down naturally
PropagationPropagate by division of tubers in spring when growth is starting
Pest resistanceMay be susceptible to slugs and vine weevil
Disease resistanceMay be susceptible to a virus