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Herbaceous Perennial

Roscoea auriculata 'Floriade'

eared roscoea 'Floriade'

A tuberous perennial, to 60cm tall, with long, lance-shaped leaves clasping the upright stems. Purple flowers are produced in ones or twos from mid- to late summer

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Ultimate height

0.5–1 metres

Time to ultimate height

2–5 years

Ultimate spread

0.5–1 metres

Clay

Loam

Moisture

Moist but well–drained

pH

Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Partial shade

Aspect

North–facing or East–facing or West–facing

Exposure

Sheltered

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical details

Family: Zingiberaceae
Native to GB / Ireland: No
Foliage: Deciduous
Habit: Columnar upright
Genus: Roscoea are tuberous perennials with arching, linear or lance-shaped leaves and showy orchid-like flowers in summer or autumn
Name status: Accepted

How to grow

Cultivation

Does best in moderately fertile, humus-rich, leafy, moist but well-drained, neutral soil, in a cool, sheltered site in partial shade. Plant tubers 15cm deep in winter or early spring. Apply a deep winter mulch in colder areas

Propagation

Propagate by division of tubers in spring when growth is starting

Suggested planting locations and garden types

Cottage and informal garden
Flower borders and beds
Underplanting of roses and shrubs

Pruning

Remove faded flowers, the rest of the plant will die down naturally

Pests

Slugs and vine weevils may be a problem

Diseases

May be susceptible to a virus

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