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Herbaceous Perennial

Hylotelephium telephium 'Yellow Xenox'PBR
  • RHS Plants for pollinators

A deciduous, clump-forming perennial to around 50cm tall with fleshy purple-green leaves that deepen in colour with age to burgundy-purple and bearing heads of pale yellow flowers opening from dusky-pink buds in mid to late summer

Synonyms
Sedum telephium 'Yellow Xenox'

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Size
Ultimate height
0.1–0.5 metres
Time to ultimate height
2–5 years
Ultimate spread
0.1–0.5 metres
Growing conditions
Chalk
Loam
Sand
Moisture
Well–drained
pH
Alkaline, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green Purple
Summer Yellow Orange Green Purple Red
Autumn Yellow Orange Green Purple Red
Winter
Position
  • Full sun
Aspect

South–facing or West–facing

Exposure
Exposed or Sheltered
Drought resistance
Yes
Hardiness
H7
Botanical details
Family
Crassulaceae
Native to GB / Ireland
No
Foliage
Deciduous
Habit
Clump forming
Potentially harmful
All parts of the plant may cause mild stomach upset if ingested, contact with the sap may irritate skin or eyes. Wear gloves and other protective equipment when handling.
Genus

Hylotelephium are succulent perennials with heads of small star-shaped flowers in summer to autumn. They are sometimes included within the genus Sedum

Name status

Accepted

How to grow

Cultivation

Grow in moderately fertile, well-drained, neutral to slightly alkaline soil in full sun. A drought-tolerant plant, see hylotelephium cultivation for further advice

Propagation

Propagate by division in spring or by softwood cuttings of non-flowering shoots in early summer

Suggested planting locations and garden types
  • City and courtyard gardens
  • Coastal
  • Cottage and informal garden
  • Gravel garden
  • Patio and container plants
  • Wildlife gardens
  • Flower borders and beds
  • Garden edging
Pruning

For bushy, compact plants, cut back the new stems by half in late May, this method is called the Chelsea Chop. Or cut back after flowering, and during border tidy ups in late winter before new growth emerges; seedheads can be left to overwinter

Pests

May be susceptible to slugs, snails and vine weevil

Diseases

May be susceptible to fungal and bacterial crown and root rot on wet soils, or powdery mildews on very dry soils

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