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Herbaceous Perennial

Kniphofia 'Incandesce'
  • RHS AGM

red-hot poker 'Incandesce'

'Incandesce' is a relatively tall plant, to 140cm, with clean-coloured upright to arching foliage and rather long, narrowish flower heads. Floriferous, with an unusual flower habit as only the very lowest of the peachy orange florets with dark orange stripes fade at maturity, to pale apricot cream. Flower stems darkish

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Size
Ultimate height
1–1.5 metres
Time to ultimate height
2–5 years
Ultimate spread
1–1.5 metres
Growing conditions
Loam
Sand
Moisture
Moist but well–drained
pH
Acid, Neutral
Colour & scent
StemFlowerFoliageFruit
Spring Green
Summer Cream Orange Green
Autumn Cream Orange Green
Winter
Position
  • Full sun
  • Partial shade
Aspect

South–facing or East–facing

Exposure
Exposed
Hardiness
H5
Botanical details
Family
Asphodelaceae
Native to the UK
No
Foliage
Deciduous
Habit
Clump forming
Genus

Kniphofia may be evergreen or herbaceous perennials, with linear or strap-shaped leaves and erect stems bearing a dense raceme of tubular, usually pendent flowers

Name status

Accepted

How to grow

Cultivation

Best grown in a sandy soil that has been enriched with humus but any deep, moist but well-drained soil will do. Full sun is best; can tolerate partial shade but flowering is reduced. The smaller stature of this cultivar makes it well-suited to smaller gardens

Propagation

Propagate by division of established clumps in late spring. Propagate by taking offshoots from the crown

Suggested planting locations and garden types
  • Cottage and informal garden
  • Gravel garden
  • City and courtyard gardens
  • Mediterranean climate plants
  • Flower borders and beds
Pruning

Old flower stems can be cut down after flowering

Pests

May be attacked by thrips and slugs and snails

Diseases

May be subject to violet root rot in poorly drained soils

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