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Centaurea solstitialis - L.
                 
Common Name St. Barnaby's Thistle, Yellow star-thistle
Family Asteraceae or Compositae
USDA hardiness 5-9
Known Hazards There is a report that the plant causes brain lesions and a nervous syndrome called 'chewing disease' in horses[274].
Habitats Cultivated land and waste ground[100].
Range S. Europe to W. Asia. Occasionally established in S. and E. England[17].
Edibility Rating  
Other Uses  
Weed Potential Yes
Medicinal Rating  
Care
Fully Hardy Well drained soil Moist Soil Full sun

Summary

Centaurea solstitialis St. Barnaby


Centaurea solstitialis St. Barnaby
http://commons.wikimedia.org/wiki/User:Penarc
   
Physical Characteristics
 icon of manicon of flower
Centaurea solstitialis is a ANNUAL/BIENNIAL growing to 0.6 m (2ft).
It is hardy to zone (UK) 6. It is in flower from Jul to September, and the seeds ripen from Sep to October. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Bees, flies, lepidoptera, self.The plant is self-fertile.
It is noted for attracting wildlife.
Suitable for: light (sandy), medium (loamy) and heavy (clay) soils, prefers well-drained soil and can grow in nutritionally poor soil. Suitable pH: acid, neutral and basic (alkaline) soils and can grow in very alkaline soils.
It cannot grow in the shade. It prefers dry or moist soil and can tolerate drought.

Synonyms

Habitats
 Cultivated Beds;
Edible Uses
Edible Parts: Leaves.
Edible Uses:

The plant is eaten as a vegetable[100]. The part used is not specified.
Medicinal Uses


Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally.

Lithontripic.

The powdered seed is used as a remedy for stone[4]. The powdered root is said to be a cure for fistula and gravel[4].
Other Uses
None known
Cultivation details
Succeeds in ordinary garden soil[1, 200]. Prefers a well-drained fertile soil and a sunny position[200]. Tolerates dry, low fertility and alkaline soils[200]. A good bee and butterfly plant the flowers are rich in nectar[171]. Members of this genus are rarely if ever troubled by browsing deer[233].
Propagation
Seed - sow April in a cold frame. When they are large enough to handle, prick the seedlings out into individual pots and plant them out into their permanent positions in the summer. If you have sufficient seed it can be sown in situ in the spring, and an autumn swing in situ might also be worth trying.

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Other Names
St. Barnaby's Thistle, Yellow star-thistle, golden starthistle, yellow cockspur, Barnaby Thistle
Found In
Argentina, Australia, Britain, Chile, Europe, France, Greece, Italy, Mediterranean, North America, South America, Spain, Tasmania, Turkey, Uruguay, USA.
Weed Potential

Right plant wrong place. We are currently updating this section. Please note that a plant may be invasive in one area but may not in your area so it’s worth checking.

Introduced in several parts of the world, including Australia, Argentina, Chile, and the USA where it can become an invasive species and noxious weed. The plant is considered an invasive species in the US states: California, Oregon, Washington, Idaho, Utah, and New Jersey.
Conservation Status
IUCN Red List of Threatened Plants Status : This taxon has not yet been assessed.
Related Plants
Latin NameCommon NameEdibility RatingMedicinal Rating
Centaurea acaulis 00
Centaurea calcitrapaCommon Star Thistle, Red star-thistle11
Centaurea chamaerhaponticum 20
Centaurea cyanusCornflower, Garden cornflower, Blue Bottle, Cornflower22
Centaurea depressaIranian knapweed20
Centaurea ibericaIberian Star Thistle, Iberian knapweed12
Centaurea jaceaBrown Knapweed11
Centaurea melitensisMaltese Star Thistle01
Centaurea montanaMountain Cornflower, Perennial cornflower, Mountain Bluet02
Centaurea nigraBlack Knapweed, Lesser knapweed12
Centaurea raphanina 10
Centaurea scabiosaGreater Knapweed02
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Author
L.
Botanical References
17100
Links / References
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Subject : Centaurea solstitialis  

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