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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 GB / Ireland
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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