CENTAUREA

Commonly known as Knapweed

Genus of about 650 species of annuals, perennials and subshrubs widely found in dry sites, rocky mountain slopes, subalpine meadows, woodland and sand dunes mainly in Europe and the Mediterranean.

 Some Knapweeds in the wild can be invasive but garden forms are ornamental and all are beneficial to insects.

In the UK the common C. nigra, Hardhead, can be dried and flower tops make a pale yellow-green dye.

The native perennial Greater knapweed, C. scabiosa can be found mainly in the south and east of England in hedgerows, on roadsides and in dry grassland.

Further Reading....
  • Herbaceous
    Early in the year, typically January till end of March, herbaceous plants might be supplied in 9cm pots to ensure timely despatch.
    Thistle-like, spherical or hemispherical flowers with tubular florets.
  • Full sun
  • Additional Features
    Good to know
    Wildlife plant - bees and butterflies.
    Pests & Diseases
    Powdery mildew.
    Place of origin
    Europe, Mediterranean, North America, Australia.
  • Soil Conditions
    Fertile well drained soil
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Buy Varieties of CENTAUREA

CENTAUREA dealbata

CENTAUREA dealbata

Knapweed, Mealy centaury, Persian cornflower

(syn. Psephellus dealbatus) - large, fringed pinkish-purple flowers and deeply divided leaves

 
Gift Wrapping available on this plant - UK Delivery Only Gift-wrapping available
individually £13.50 each , 3+ £12.00 each 
Gift Wrapping available on this plant
CENTAUREA 'Jordy'

CENTAUREA 'Jordy'

Knapweed

deep reddish-purple feathery flowers and silvery leaves

 
individually £13.50 each , 3+ £12.00 each 
CENTAUREA montana 'Alba'

CENTAUREA montana 'Alba'

Mountain knapweed, Perennial cornflower

pure white flowers growing up to 45cms(18ins)

 
Gift Wrapping available on this plant - UK Delivery Only Gift-wrapping available
individually £13.50 each , 3+ £12.00 each 
Gift Wrapping available on this plant
CENTAUREA montana 'Purple Heart'

CENTAUREA montana 'Purple Heart'

Mountain knapweed, Perennial cornflower

white cornflower with purple centre

 
Gift Wrapping available on this plant - UK Delivery Only Gift-wrapping available
individually £13.50 each , 3+ £12.00 each 
Gift Wrapping available on this plant
CENTAUREA 'Silver Feather'

CENTAUREA 'Silver Feather'

Knapweed

compact. Lilac-pink cornflowers above frosted silver foliage

 
individually £13.50 each , 3+ £12.00 each 
Notify me when this plant is available to order
Available late spring to early summer 2024 - Spring according to the Met Office is defined as March 1st - May 31st. Therefore late spring is mid-April onwards. This is not a guaranteed date but an estimate and subject to availability.

Useful extras...

Fertilisers & Feeds - Empathy
Afterplant - Grow Your Own
AFTER PLANT GROW YOUR OWN seaweed is ready to use liquid concentrate that was specially formulated be used on all edible plants.
Only £8.00

Fertilisers & Feeds - Empathy
Afterplant - Tomatoes
AFTER PLANT TOMATO FEED Liquid Concentrate with Bio stimulant is a high potash liquid concentrate containing seaweed extract, plant derived amino acids and other nutrients specifically formulated to benefit tomatoes and greenhouse plants.
Only £8.00

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)
3 options from £3.00

Fertilisers & Feeds - Empathy
Rootgrow Ericoid mycorrhizal fungi
This specially adapted Rootgrow™ mycorrhizal fungi will boost the growth of acid-loving plants like rhododendrons, azaleas, heathers and blueberries. It contains ericoid and arbuscular mycorrhizal fungi, which are found in poor acidic soils where ericaceous plants naturally grow.
Only £7.50

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

Fertilisers & Feeds - Vitax
Blood, Fish & Bone
Improves vegetable, fruit and flower quality. Blood, Fish and Bone contains three major nutrients essential for strong and healthy growth.
Only £6.00

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