Overview

Roscoea cautyloides is a perennial in the genus Roscoea, part of the Zingiberaceae family. Roscoea cautyloides grows best in partial shade, and tolerates well-drained and humus-rich soils and neutral to slightly acidic pH. Its UK hardiness is rated H5. Suggested uses include rock gardens, woodland gardens and shaded borders. It is native to Himalayan region, including parts of Nepal, Bhutan and and India.

About

Roscoea cautyloides is a perennial member of the ginger family with orchid-like flowers formed largely from staminodes rather than true petals. It dies back each year to a short, vertical rhizome with tuberous roots. Native to cooler mountainous regions of Asia, it produces its flowering stems in early summer. Flowers appear June to August.

About the genus

Roscoea is a genus of perennial plants of the family Zingiberaceae. While most members of the ginger family are tropical, Roscoea species are native to cooler mountainous regions of the Himalayas, China and its southern neighbours. Roscoea flowers superficially resemble orchids, although they are not related.

Wikipedia contributors, "Roscoea", CC BY-SA 4.0 — Roscoea

In the garden

Roscoea cautyloides belongs to the genus Roscoea in the Zingiberaceae and comes from cooler, mountainous parts of Asia, where species grow in grassland, scree and at the edges of deciduous woodland. Plants are herbaceous perennials that retreat to a short vertical rhizome over winter and start growing with the onset of the summer growing season. Select a site that reflects its native range: positions that combine good drainage with regular moisture during the growing months suit it best. Scree-like, gritty soils or a humus-rich soil at a woodland edge are both appropriate; where it receives too much hot, direct afternoon sun it can benefit from some light shade. Plant with the rhizome just below the soil surface so shoots can emerge readily in spring. Roscoea cautyloides works well in rock and alpine gardens, at the front of herbaceous borders where a cooler microclimate exists, or beside shaded gravel paths and woodland margins. Its orchid-resembling blooms add an architectural element to summer beds and naturalistic planting schemes. Expect the flowering stems to rise from the rhizome in early summer, bringing the characteristic blooms between June and August.

Growing conditions

Best soil and position for Roscoea

Sunlight

partial shade

Soil type

well-drained, humus-rich

Soil pH

neutral to slightly acidic

Soil moisture

moist but well-drained

Aspect

sheltered

Exposure

partial shade

UK hardiness

H5

Plant details

Roscoea cautyloides size, habit and characteristics

Plant type

perennial

Suggested uses

rock gardens, woodland gardens, shaded borders

Native to

Himalayan region, including parts of Nepal, Bhutan, and India

Care notes

Pruning and caring for Roscoea cautyloides

Cultivation

Plant in humus-rich, well-drained soil in a sheltered, partially shaded position. Protect from strong winds and late frosts. Mulch in winter to protect rhizomes.

Pruning

Cut back dead foliage after flowering or in late autumn.

Propagation

Division of rhizomes in spring or autumn; seed propagation possible but slow.

Frequently asked questions