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Herbaceous Perennial

Kniphofia triangularis

dwarf red-hot poker

K. triangularis is a compact perennial to 60cm tall, forming a clump of narrow, grassy foliage, with slender spikes of pendulous orange to red flowers opening from red buds from mid summer to mid autumn

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

South–facing or West–facing

Exposure
Exposed or Sheltered
Hardiness
H5
Botanical details
Family
Asphodelaceae
Native to the UK
No
Foliage
Deciduous
Habit
Bushy
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

Correct

Plant range
S Africa

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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. Protect young plants from winter wet and to retain water during the summer with a thick mulch

Propagation

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

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

Cut down old flower spikes when flowering is finished

Pests

Thrips may cause a mottling on foliage. Slugs and snails may cause damage, especially to flower spikes

Diseases

Generally disease free but Violet root rot can be a problem especially in wet, acid soils with poor drainage

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