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KNIPHOFIA 'Royal Castle'
Commonly known as Poker lily, Red hot poker, Tritoma
Red/yellow flower spike
Further Reading....
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EvergreenKeeled, strap-shaped leaves
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Semi-evergreenKeeps some of its foliage all year, and will drop some leaves as well.
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Red
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Yellow
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Height1m (39in)
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Spread60cm (24in)
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Bulb/Corm or rhizomatous perennialClump-forming rhizomatous perennial. Produces numerous tubular flowers in spikes held well above the leaves
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HerbaceousEarly in the year, typically January till end of March, herbaceous plants might be supplied in 9cm pots to ensure timely despatch.
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Hardy - cold winterHardy in most places throughout the UK even in severe winters. May not withstand open/exposed sites or central/northern locations. Plant can withstand temperatures down to -15°C (5°F)
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Full sun
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Partial shade
KNIPHOFIA 'Royal Castle'
- Details
- Description
- Mature Size
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
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Additional FeaturesGood to knowWildlife plant. Attracts bees, butterflies and other insectsPests & DiseasesSlugs, snails, aphids, thripsPlace of originSouthern and tropical Africa, Madagascar, Arabia
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Flower ShapeRacemesSpike-like racemes
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HardinessFully hardy
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Seasonal InterestSummer
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Soil ConditionsFertile moist well-drained soilHumus-rich, preferably sandy
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WildlifeBee friendlyRabbit Resistant
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Kniphofia - Care Guide
1m (39in)
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60cm (24in) |
Useful extras...

Fertilisers & Feeds - Vitax
Q4 Pelleted Fertiliser
A useful fertiliser suitable for use on a wide variety of plants. Q4 provides all the nutrients and trace elements essential for vigorous growth, abundant flowering and ripening of fruit.
3 options from £6.00

Fertilisers & Feeds - Empathy
Rootgrow mycorrhizal fungi
Recommended by the RHS. Contains Rootgrow™ mycorrhizal fungi. Suitable for all trees and shrubs (except rhododendrons, azaleas, heathers, cranberries and blueberries)
2 options from £6.00

Fertilisers & Feeds - Empathy
All-purpose Seaweed Stimulant
All-purpose organic concentrated seaweed feed that is a ready to use, derived from sustainable harvested kelp, that can be used on all outdoor and indoor plants, except acid loving plants.
Perfect used in conjunction with Rootgrow™.
Only £7.50