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Colletia paradoxa

anchor plant

A rounded deciduous shrub to 3m, with stems bearing many blue-green, flattened, triangular spines and small clusters of fragrant white flowers in autumn

Synonyms
Colletia bictonensis
Colletia cruciata
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Size
Ultimate height
2.5–4 metres
Time to ultimate height
10–20 years
Ultimate spread
2.5–4 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Blue Green
Summer Blue Green
Autumn Blue Green White
Winter Blue Green
Position
  • Full sun
Aspect

South–facing or West–facing

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

Colletia are spiny deciduous shrubs with sparse leaves and small, fragrant, tubular flowers in late summer or autumn

Name status

Correct

Plant range
Argentina, S Brazil

How to grow

Cultivation

Grow in a sheltered border or against a warm, sunny wall, or in a cool greenhouse

Propagation

Propagate by semi-ripe cuttings of short sideshoots in late summer

Suggested planting locations and garden types
  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Patio and container plants
  • Mediterranean climate plants
  • Architectural
  • Banks and slopes
  • Flower borders and beds
  • Wall side borders
Pruning

Pruning group 1: tip prune young plants to promote bushiness. Tolerates moderately hard pruning

Pests

Generally pest-free

Diseases

Generally disease-free

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