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Herbaceous Perennial

Helenium 'Gartensonne'
  • RHS AGM
  • RHS Plants for pollinators

sneezeweed 'Gartensonne'

An upright perennial with bright yellow flowerheads, the disk florets coppery brown

Synonyms
Helenium autumnale 'Gartensonne'
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Size
Ultimate height
1–1.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Bronze Yellow Green
Autumn Bronze Yellow Green
Winter
Position
  • Full sun
Aspect

West–facing or East–facing or South–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 any fertile, moist but well-drained soil in full sun. Provide support for the best results

Propagation

Propagate by division in autumn or spring. Propagate by basal cuttings in cold frame in spring

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

Deadhead to prolong flowering

Pests

Generally pest-free

Diseases

May be subject to a leaf spot

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