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Herbaceous Perennial

Helianthus tuberosus 'Fuseau'
  • RHS Plants for pollinators

Jerusalem artichoke 'Fuseau'

A tall, herbaceous perennial to 2m or more, with green leaves and small, yellow sunflowers in late summer-autumn. It is grown for its edible roots which are smoother and thin-skinned compared to the species type

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Size
Ultimate height
1.5–2.5 metres
Time to ultimate height
1–2 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 Green
Autumn Yellow Green
Winter
Position
  • Full sun
  • Partial shade
Aspect

East–facing or North–facing or South–facing or West–facing

Exposure
Sheltered
Hardiness
H5
Botanical details
Family
Asteraceae
Native to the UK
No
Foliage
Deciduous
Habit
Clump forming, Columnar upright
Genus

Helianthus can be tall, erect annuals, tuberous or rhizomatous perennials, with coarse simple leaves and large daisy-like flower-heads

Name status

Accepted

How to grow

Cultivation

Grow in any water-retentive soil with good drainage. Flowering will be better in full sun, but for maximum harvest, flowering should be avoided so some shade is good. Choose a sheltered spot as the tall plants can blow over in the wind. May have the potential to become a nuisance if not managed well. For more advice see Jerusalem-artichoke cultivation

Propagation

Propagate from division of tubers

Suggested planting locations and garden types
  • Cottage and informal garden
  • Prairie planting
  • Wildlife gardens
  • Cut flowers
Pruning

No pruning required

Pests

May be susceptible to damage from slugs and snails

Diseases

Generally disease-free

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