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Herbaceous Perennial

Kniphofia 'Jonathan'
  • RHS AGM

red-hot poker 'Jonathan'

'Jonathan' is a relatively tall cultivar, to 130cm, with long, arching to upright, glaucous green leaves. Flowers form very long elliptic spikes, to 30cm, vibrant red-orange, keeping their colour as they mature with only a few lower florets fading to yellowish

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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 Orange Yellow Red Green
Autumn Orange Yellow Red Green
Winter
Position
  • Full sun
  • Partial shade
Aspect

East–facing or South–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

Grow in full sun and fertile, moist but well-drained soil that isn’t too wet over winter. See kniphofia cultivation for further advice

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

Cut down old flower stems after flowering; old or dead leaves can be tidied up or removed in mid-spring

Pests

May be susceptible to aphids, thrips, slugs and snails

Diseases

Generally disease-free

Get involved

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