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Herbaceous Perennial

Ranunculus constantinopolitanus 'Plenus' (d)

A clump-forming perennial to a height of 30cm, with deeply lobed dark green leaves and bright yellow double flowers with green centres from mid spring to midsummer

Synonyms
Ranunculus bulbosus 'Speciosus Plenus'
Ranunculus speciosus 'Flore Pleno'

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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
1–2 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Clay
Loam
Moisture
Moist but well–drained, Poorly–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Yellow Green
Autumn Green
Winter
Position
  • Full sun
  • Partial shade
Aspect

South–facing or West–facing or East–facing

Exposure
Exposed or Sheltered
Hardiness
H5
Botanical details
Family
Ranunculaceae
Native to the UK
No
Foliage
Deciduous
Habit
Clump forming
Potentially harmful
Harmful if eaten, skin irritant. Wear gloves and other protective equipment when handling. Pets: Harmful if eaten, skin irritant - for further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus

Ranunculus can be annuals, biennials, evergreen or herbaceous perennials, with rhizomes, tubers or spreading by runners. The leaves are variable but often palmately lobed or dissected and the flowers usually bowl-shaped

Name status

Accepted

How to grow

Cultivation

Grow in damp, but well-drained soil in sun or part shade

Propagation

Propagate by division in autumn or spring

Suggested planting locations and garden types
  • City and courtyard gardens
  • Cottage and informal garden
  • Rock garden
  • Low Maintenance
  • Flower borders and beds
  • Ground cover
Pruning

Cut back in autumn as foliage dies back

Pests

May be susceptible to aphids, slugs and snails

Diseases

May be susceptible to powdery mildews, a rust and grey moulds

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