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CENTAUREA montana 'Purple Heart'
Commonly known as Mountain knapweed, Perennial cornflower
White cornflower with purple centre
Further Reading....
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DeciduousL
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PurpleShades of purple/mauve/lilac/violetPurple centre -
White -
Height45cm (18in) -
Spread60cm (24in)
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Bulb/Corm or rhizomatous perennialRhizomatous, mat-forming perennial. Produces flowers 5cm (2in) across
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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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Very hardyHardy in the severest continental climates including exposed upland locations in the UK. Plant can withstand temperatures < -20 (-4°F) -
Full sun -
Partial shade
CENTAUREA montana 'Purple Heart'
- Details
- Mature Size
- Tips and Advice
- Goes Well With
- Planting Combinations
- Other Suggestions
- See Also...
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Additional Features
Good to knowWildlife plant - insects
Pests & DiseasesPowdery mildew
Place of originCentral Europe, central Italy, Slovenia, Croatia, Bosnia -
HardinessFully hardy
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Seasonal InterestSummer
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Soil ConditionsFertile moist well-drained soil
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Wildlife
Bee friendlyButterfly friendly
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Centaurea - Growing Guide
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45cm (18in)
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60cm (24in) |
Useful extras...
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
Vermin & Pest Control
Slug Pellets
Slug killer blue mini pellets are easy to use and give effective control of slugs and snails.
Ideal in garden, conservatory or greenhouse.
Only £6.50
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