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Herbaceous Perennial

Helenium autumnale 'Siesta'PBR (Mariachi Series)
  • RHS Plants for pollinators

sneezeweed 'Siesta'

'Siesta' is a clump-forming herbaceous perennial 45-55cm high with branched stems, lance-shaped green leaves, and flowerheads with deep russet-red ray-florets, chocolate-brown disc-florets, and golden anthers, from late summer to early autumn; the flowers provide pollen for bees and nectar for bees and other insects

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Size
Ultimate height
0.5–1 metres
Time to ultimate height
2–5 years
Ultimate spread
0.5–1 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Brown Gold Red Green
Autumn Brown Gold Red Green
Winter
Position
  • Full sun
Aspect

South–facing or West–facing or East–facing

Exposure
Exposed or Sheltered
Hardiness
H7
Botanical details
Family
Asteraceae
Native to GB / Ireland
No
Foliage
Deciduous
Habit
Clump forming
Genus

Helenium may be upright, clump-forming annuals, biennials or herbaceous perennials with simple leaves and showy daisy-like flower-heads over a long period

Name status

Accepted

How to grow

Cultivation

Grow in full sun in fertile, moisture-retentive, humus-rich, well-drained soil; divide every two to three years to maintain vigour

Propagation

Propagate by division in autumn or spring, or by basal softwood cuttings in containers in a cold frame in spring; propagation for resale is prohibited without a licence

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

No pruning required, but deadheading will prolong flowering

Pests

Generally pest-free

Diseases

Generally disease-free, but may be affected by leaf spot

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