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Herbaceous Perennial

Crocosmia 'Bressingham Dark Fires'

montbretia 'Bressingham Dark Fires'

A cormous, clump-forming, herbaceous perennial with an upright growing habit and dark purple-green, blade-like foliage. Strong, arching flower stems produce bicoloured red and yellow tubular flowers from summer through until the autumn

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Ultimate height

0.5–1 metres

Time to ultimate height

2–5 years

Ultimate spread

0.5–1 metres

Chalk

Clay

Loam

Sand

Moisture

Moist but well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun
Partial shade

Aspect

South–facing or East–facing or West–facing

Exposure

Exposed or Sheltered

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

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: Unresolved

How to grow

Cultivation

Corms should be planted in moderately fertile, humus rich soil approximately 10cm deep and 7.5–10cm apart in groups to form clumps. Water if it is a dry season as a lack of water reduces flowering. Has the potential to become a nuisance in some gardens if not managed well

Propagation

Propagate by division in early spring when clumps become congested or Propagate by seed sown in containers in a cold frame as soon as ripe

Suggested planting locations and garden types

City and courtyard gardens
Coastal
Cottage and informal garden
Banks and slopes
Flower borders and beds

Pruning

No pruning required. Remove dead leaves and flower stems before new growth starts in spring

Pests

May be susceptible to red spider mite

Diseases

Generally disease-free

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