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Herbaceous Perennial

Geum 'Custard Tart'
  • RHS AGM

avens 'Custard Tart'

A low-growing, clump-forming rhizomatous perennial to around 25cm high, with basal rosettes of lobed, toothed green leaves. Frilly, double custard-yellow flowers are held on tall stems above the foliage from June to August. Ideal for the front of a flower border in a cooler part of the garden

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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
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Yellow Green
Autumn Green
Winter
Position
  • Full sun
  • Partial shade
Aspect

East–facing or South–facing or West–facing

Exposure
Exposed or Sheltered
Hardiness
H7
Botanical details
Family
Rosaceae
Native to the UK
No
Foliage
Deciduous
Habit
Clump forming
Genus

Geum are rhizomatous perennials, occasionally spreading by stolons, with a basal rosette of pinnately lobed leaves and saucer-shaped flowers in loose clusters

Name status

Accepted

How to grow

Cultivation

Grow in fertile, moist but well-drained soil in full sun or part shade. Avoid areas that are waterlogged over winter. Divide every three years or so to maintain vigour

Propagation

Propagate by division in spring or autumn

Suggested planting locations and garden types
  • Cottage and informal garden
  • Patio and container plants
  • Wildlife gardens
  • Flower borders and beds
  • Garden edging
  • Underplanting of roses and shrubs
Pruning

Deadhead to promote more blooms, and cut back old stems after flowering

Pests

May be susceptible to leaf miners and geum sawfly

Diseases

May be susceptible to powdery mildews

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