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Pelargonium 'Copthorne' (U/Sc)
  • RHS AGM

geranium 'Copthorne'

'Copthorne' is a bushy plant to 50cm in height, with boldly lobed, spicily-scented leaves and light mauve flowers with the upper petals marked with purple

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© Annaick Guitteny
© RHS 1993
© Annaick Guitteny
© RHS 1993
© Annaick Guitteny
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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Well–drained
pH
Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Purple Green
Autumn Green
Winter Green
Position
  • Full sun
Aspect

West–facing or South–facing or East–facing

Exposure
Sheltered
Hardiness
H1C
Botanical details
Family
Geraniaceae
Native to the UK
No
Foliage
Evergreen
Habit
Bushy
Genus

Pelargonium can be perennials, sub-shrubs or shrubs, sometimes succulent and mostly evergreen, with palmately lobed or pinnately divided leaves and clusters of slightly irregular, 5-petalled flowers

Name status

Accepted

Horticultural Group
Unique pelargoniums are shrubby perennials with often pungently scented, rounded, lobed or more deeply cut foliage and clusters of single, funnel-shaped white, pink, red, orange or purple flowers to 3cm across

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How to grow

Cultivation

Under glass grow in a loam-less or loam-based potting compost in full light with shade from hot sun with good ventilation. When in growth water moderately and apply a balanced liquid fertiliser in spring and early summer. A high potash fertiliser should be used when in flower. Water sparingly in winter. Can be grown outside in frost-free areas in a fertile soil. See Pelargonium cultivation for further advice.

Propagation

Take softwood cuttings in summer and overwinter plants in frost free conditions or take softwood cuttings in spring

Suggested planting locations and garden types
  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Patio and container plants
  • Flower borders and beds
Pruning

Deadhead regularly

Pests

Susceptible to vine weevil, caterpillars and thrips

Diseases

May be subject to grey moulds when grown under glass

Get involved

The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.