• AGM plants

    AGM plants have been through a rigorous trial and assessment programme. They are:

    • Excellent for ordinary use in appropriate conditions
    • Available to buy
    • Of good constitution
    • Essentially stable in form & colour
    • Reasonably resistant to pests & diseases

Colletia paradoxa

anchor plant

  • Other common names anchor plant

  • Family Rhamnaceae

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

  • Details C. paradoxa is a rounded deciduous shrub to 3m, with stems bearing many blue-green, flattened, triangular spines and small clusters of fragrant white flowers in autumn

  • Plant range Uruguay, S Brazil

Characteristics

  • Foliage Deciduous

  • Habit Bushy

  • Fragrance Flower

  • 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)

    H4

Colour

Sunlight

  • Full Sun

  • Aspect South-facing or West-facing

  • Exposure Sheltered

Soil

  • Sand

    Sand

  • Chalk

    Chalk

  • Loam

    Loam

  • MoistureWell-drained

  • SoilSand, Chalk, Loam

  • pHAlkaline, Neutral, Acid

Size

  • Ultimate height 2.5-4 metres

  • Ultimate spread 2.5-4 metres

  • Time to ultimate height 10-20 years

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 Banks and Slopes Flower borders and beds Wall-side Borders Architectural City & Courtyard Gardens Coastal Cottage & Informal Garden Mediterranean Climate Plants Patio & Container Plants

How to care

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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