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Kniphofia caulescens (Red hot poker)

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Skill rating Beginner
skill rating
Ultimate spread 1m
max. spread
Ultimate height 1.5m
max. height
Time to maturity 2-5 years
to maturity
Maintenance level 1 hour care
per year

Botanical name: Kniphofia caulescens

Other names: Red hot poker, Caulescen red hot poker


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Genus: Kniphofia

Species: K. caulescens - K. caulescens is an evergreen perennial with stout stems, grey-green leaves, and fat spikes of coral-red to pale-yellow flowers.

Kniphofia caulescens is: Evergreen

Flower: Yellow, Red in Summer; Red, Yellow in Autumn

Foliage: Grey-green in All seasons

Habit: Upright

Awards: RHS AGM (Award of Garden Merit)

Plant with: Macleaya microcarpa 'Kelway's Coral Plume' (Plume poppy 'Kelway's Coral Plume'), Crocosmia x crocosmiiflora 'Norwich Canary' (Montbretia 'Norwich Canary')

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Watch out for

Specific pests: Slugs , Snails

Diseases: Generally disease-free.

General care

Propagation methods: Division. REGISTER to read more...


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Kniphofia caulescens (Red hot poker) will reach a height of 1.5m and a spread of 1m after 2-5 years.


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Suggested uses: Architectural, City, Coastal, Cottage/Informal, Beds and borders, Low Maintenance, Mediterranean

Cultivation: Plant in fertile, loamy soil or sandy soil enriched with humus. Dislikes chalky soils. Best in full sun but will tolerate parital shade, although flowering will be reduced. Protect young plants with a mulch in winter.

Suitable for your garden?
In progress indicator
This plant likes... Garden match
Soil types: Loamy, Sandy Match unknown
Soil drainage: Moist but well-drained, Well-drained Match unknown
Soil pH: Acid, Neutral Match unknown
Light: Partial Shade, Full Sun Match unknown
Aspect: South, West Match unknown
Exposure: Exposed, Sheltered Match unknown
Hardiness: Hardy (H4), Tender in frost (H3) Match unknown

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Planting depth

Comment from Ronald Dewhirst

I am planning on transplanting my Kniphofia to a sunnier, drier spot than where it is at present. Currently the rhizomes are partly above the ground surface. I'm not sure if this is correct as it makes them vulnerable to frost unless covered.
When I replant, should I replant them beneath the soil surface? If so how deep should they be planted? Thanks for your time.

  • Views: 49
  • Replies: 1
  • Posted: Fri. 9th September 2011 14:24
  • Last reply: Thu. 15th September 2011 20:03

We list 32 suppliers who tell us they sell Kniphofia caulescens (Red hot poker). In order to see the list you'll need to either register or log in as a full member.


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