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Crocosmia mathewsiana

Mathew's montbretia

A tall, clump-forming, cormous perennial to 2m with very narrow, pleated leaves. Orange, funnel-shaped flowers are produced in mid-to late summer on unbranched sprays that start arched downwards then become horizontal

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Size
Ultimate height
1.5–2.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Orange Green
Autumn Green
Winter
Position
  • Full sun
  • Partial shade
Aspect

East–facing or South–facing or West–facing

Exposure
Sheltered
Hardiness
H3
Botanical details
Family
Iridaceae
Native to GB / Ireland
No
Foliage
Deciduous
Habit
Clump forming
Genus

Crocosmia are deciduous cormous perennials with erect, sword-shaped leaves and branched spikes of showy, funnel-shaped flowers in summer

Name status

Correct

Plant range
S Africa (Drakensberg Mts)

How to grow

Cultivation

Plant 8-10cm deep in fertile, humus-rich, moist but well-drained and preferably sandy soil in full sun or partial shade. I all but mild areas will require shelter from cold, drying winds and a thick, dry, organic mulch in winter. If clumps become congested, divide them in early spring. Has the potential to become a nuisance in some gardens if not managed well

Propagation

Propagate by division of established clumps in spring, just before new growth starts

Suggested planting locations and garden types
  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Prairie planting
  • Low Maintenance
  • Flower borders and beds
  • Wall side borders
  • Banks and slopes
  • Cut flowers
Pruning

No pruning required, except removal of dead leaves and flower stems in autumn or before new growth starts in spring

Pests

May be susceptible to glasshouse red spider mite

Diseases

Generally disease-free

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