|
| Identification |
|
Genus
Centaurea
Species
nigra
Variety
Cultivar
Common names
knapweed
Cnapan Dubh
Family
ASTERACEAE
Specimen number
S8542
Data source
DyePl p64
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| Life cycle |
|
Life form
Terrestrial
Life cycle
Various
Life span
Annual cycle
Not applicable
Stature
Various
Growth form
Not applicable
Growth habit
Various
Overall height
Overall spread
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| Climate |
|
Sunshine
Various
Water
Various
Optimal soil texture
Various
Acceptable soil pH
Various
USDA hardiness
Not classified
AHS heat zones
Not classified
Sunset climate zones
Not classified
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| Garden |
|
Suitable for gardens
no
Nursery
Unknown
Compost
no
Size at acquisition
Unknown
Garden location
Unknown
Garden notes
This whole plant has been used in traditional fabric dyeing. Yellow is the most typical color produced by Centaurea nigra. Knapweed has been used in the Outer Hebrides of Scotland for dyeing. It is used in dyeing wool. When dyeing with this plant, alum is used as a mordant to fix the color to the fabric. Centaurea nigra is known as Cnapan Dubh in Gaelic.
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| Special qualities |
|
Tolerates drought
no
Tolerates high humidity
no
Tolerates seaside conditions
no
Insect resistant
no
Disease resistant
no
Deer resistant
no
Best uses
Symbiosis
Attracts butterflies
no
Attracts hummingbirds
no
Autumn foliage
no
Colorful berries
no
Desirable qualities
Other interest
Other interest color
Other interest period
|
| Adverse factors |
|
Common pests
Poisonous parts
Poisonous indications
Internal poison
no
Dermatologic poison
no
Livestock poison
no
Mechanical injury
no
Hay fever pollen
Hay fever season
Adverse qualities
|
| Herbal medicine |
|
Medicinal properties
Medicinal parts
Has medicinal uses
no
Do not self-administer
no
Do no use if pregnant
no
Legally restricted
no
Toxicity precautions
Medicinal notes
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| Traditional uses |
|
Parts used
Traditional uses
Contemporary uses
Fragrance
Fragrance parts
Fragrance intensity
Fragrance category
Dye parts
Whole plant
Dye color
yellow
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| Cultivation |
|
Propagule
Various
Pollination method
Planting style
Crop spacing
Row spacing
Cold frame
Planting period
Harvesting period
Frost tolerance
Heat requirement
Fertilizer
Typical
Time to harvest
|
| Nutrition |
|
Is edible
no
Culinary uses
Nutritional value
Edible parts
Description of edible parts
Flavor / texture
|
| Horticulture |
|
Horticulture notes
Centaurea nigra may have originated from Scotland.
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| Herbarium |
|
Tag needs printing
no
Collection notes
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Page 995 of 4998
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