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AquaticBogsHerbaceous Perennial

Ranunculus lingua 'Grandiflorus'
  • RHS Plants for pollinators

large-flowered greater spearwort

An erect marginal aquatic perennial with simple, lance-shaped blue-green leaves and bowl-shaped yellow flowers 6cm across borne on branched stems in early summer

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Size
Ultimate height
1–1.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.5–1 metres
Growing conditions
Clay
Loam
Moisture
Poorly–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Blue Green
Summer Yellow Blue Green
Autumn
Winter
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Exposed or Sheltered
Hardiness
H7
Botanical details
Family
Ranunculaceae
Native to the UK
Yes
Foliage
Deciduous
Habit
Clump forming
Potentially harmful
Harmful if eaten, skin irritant. Wear gloves and other protective equipment when handling
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 muddy pool margins in water 15-25cm deep, in full sun. Will grow in still or slow moving water. See pond plants and bog gardens for further advice

Propagation

Propagate by division in spring or autumn

Suggested planting locations and garden types
  • Wildlife gardens
  • Low Maintenance
Pruning

Cut back after flowering

Pests

Generally pest-free

Diseases

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

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