Miscanthus
Miscanthus sinensis
A tall, clump-forming ornamental grass producing arching green leaves and feathery flower plumes from late summer into autumn. Miscanthus is fully hardy throughout the UK and provides outstanding architectural structure in borders and as a standalone specimen. The dried flower heads and tawny winter foliage persist through the cold months, offering year-round interest. Popular cultivars include 'Gracillimus', 'Morning Light', and 'Zebrinus'.
Full growing guide
How to Grow Miscanthus in the UK
How to grow miscanthus
Plant in spring in a sunny, sheltered position for the best flower production. Miscanthus tolerates most soils but performs best in fertile, moisture-retentive ground. Space plants at least 100 cm apart to allow the clumps to develop fully. Water regularly during the first growing season to establish a strong root system. Once established, miscanthus is drought tolerant. Leave the dried foliage and flower heads standing over winter for structure and to provide shelter for overwintering insects. In late February or early March, cut the entire plant down to 15-20 cm above ground level before new growth emerges. Feed with a general-purpose fertiliser in spring. Large established clumps can be divided every four to five years to maintain vigour.
Pruning
Cut all stems to 15-20 cm in late February before new shoots appear. Use loppers or hedge shears for large clumps. Do not cut in autumn as the old stems protect the crown from winter frost and wet.
Propagation
- Division in spring
Common problems
- Poor flowering in too much shade
- Slow establishment in cold, wet soils
- Clumps dying out in the centre of old plants
Good companions
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