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Herbaceous Perennial

Crocosmia masoniorum 'Rowallane Yellow'

giant montbretia 'Rowallane Yellow'

'Rowallane Yellow' is an erect herbaceous perennial to 80cm, with narrowly sword-shaped leaves and sprays of bright chrome yellow flowers in summer

Synonyms
Crocosmia 'Rowallane Yellow'
Crocosmia 'Rowallane'
see moreCrocosmia masoniorum 'Rowallane'
Crocosmia masoniorum Rowallane yellow
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Size
Ultimate height
0.5–1 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 Yellow Green
Autumn Green
Winter
Position
  • Partial shade
Aspect

South–facing or West–facing or East–facing

Exposure
Sheltered
Hardiness
H4
Botanical details
Family
Iridaceae
Native to the UK
No
Foliage
Deciduous
Habit
Bushy
Genus

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

Name status

Accepted

How to grow

Cultivation

Plant 8 to 10cm deep in moderately fertile, humus-rich soil. Lift and divide congested clumps to maintain vigour. Has the potential to become a nuisance in some gardens if not managed well

Propagation

Propagate by division in early spring as growth begins

Suggested planting locations and garden types
  • Coastal
  • Cottage and informal garden
  • City and courtyard gardens
  • Banks and slopes
  • Flower borders and beds
Pruning

No pruning required

Pests

Generally pest-free

Diseases

Generally disease-free

Get involved

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