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Annual Biennial

Rudbeckia hirta 'Big Love Smileyz' (Big Smileyz Series)
  • RHS Plants for pollinators

A compact, deciduous perennial often grown as an annual/biennial with green foliage and large, golden yellow daisy-like flowers, red-brown at the base of the petals and a dark brown button-shaped centre, appearing from June to October

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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
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring
Summer Gold Yellow Red Brown Green
Autumn Gold Yellow Red Brown Green
Winter
Position
  • Full sun
  • Partial shade
Aspect

South–facing or West–facing

Exposure
Exposed or Sheltered
Hardiness
H3
Botanical details
Family
Asteraceae
Native to GB / Ireland
No
Foliage
Deciduous
Habit
Columnar upright
Genus

Rudbeckia may be annuals, biennials or rhizomatous herbaceous perennials, with simple or pinnately divided leaves and large daisy-like flower-heads with yellow or orange rays surrounding a prominent conical disk

Name status

Unresolved

How to grow

Cultivation

Best grown as a half-hardy annual. Grows well in moderately fertile, preferably heavy but well-drained soil in full sun or partial shade. See rudbeckia cultivation for further advice

Propagation

Propagate by seed sown with gentle heat in spring

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

Deadhead spent flowers

Pests

Generally pest-free

Diseases

May be susceptible to grey moulds if air circulation is poor

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