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Roscoea purpurea f. rubra (Red-flowered purple roscoea)

Other names: Roscoea purpurea f. rubra 'Red Gurkha', Roscoea purpurea 'Red Gurkha'

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Species
R. purpurea f. rubra is an erect, tuberous perennial with red-flushed stems bearing stem-clasping, strap-shaped, wavy, dark green leaves and, in summer, orchid-like, red to orange-red flowers with red-flushed, green bracts.
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Season of interest

Flower

Spring Summer Autumn Winter
Flower

Foliage

Spring Summer Autumn Winter
Foliage
Height and spread

Height and spread

Size Max height Max spread To maturity
0.4 m 0.2 m 2-5 years
1 ft 0 ft 2-5 years

Where to grow

Soil type
  • Clay
  • Loamy
Soil drainage
  • Moist but well-drained
Soil pH
  • Acid
  • Alkaline
  • Neutral
Sunlight
  • Partial Shade
  • Full Sun
Aspect
  • East
  • North
Exposure
  • Sheltered

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Additional plant details

Cultivation

Plant tubers 15cm deep in winter or early spring in moderately fertile, preferably neutral, moist but well-drained soil in a sheltered, partially-shaded site. Apply a deep winter mulch in frost-prone areas. Dislikes hot, humid summers & wet winters.

Suggested uses

Containers/Patio, Rock, Beds and borders, Cottage/Informal, Underplanting, Woodland

UK hardiness

H5

USDA zones

Zone 6, Zone 7, Zone 8, Zone 9

Sunset zone

WUCOLS

North-Central Coastal = Moderate/Medium
Central Valley = Unknown
South Coastal = Moderate/Medium
South Inland = Unknown
High and Intermediate Desert = Unknown
Low Desert = Unknown

Foliage

Deciduous

Habit

Erect

Native to

Nepal

Drought tolerant

No

Flood tolerant

No

Toxicity

Not toxic

Plant care

Pruning

Remove faded flowers and allow the plant to die down naturally. Divide tubers every 3-4 years in early spring to maintain vigour.

Propagation methods

Seed, Division

Propagation

Sow seed in containers in a cold frame as soon as ripe. Divide tubers in spring when growth resumes.

Pests

Slugs

Vine weevil

Diseases

Virus

Water regularly through dry periods

Deadhead regularly (optional)

Divide and replant in spring

Protect in winter with dry mulch (in cold areas)

Remove faded or dead foliage (optional)

Plant in moist but well-drained soil (spring)

Sow seeds in a cold frame in autumn

Other plants

Plants in this Genus (0)

Roscoea

Companion plants (0)

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