Blackstonia perfoliata
Yellow Wort
an annual member of the Blackstonia genus in the family Gentianaceae.
Taxonomy and growth
- Family
- Gentianaceae
- Genus
- Blackstonia
- Life cycle
- annual
- Height
- 0.45 m
- Fertility
- Self fertile, Self
- Flower type
- hermaphrodite
- Pollinators
- Self
Uses
Material uses
This section contains historical Plants For A Future notes marked noncommercial.
A yellow dye is obtained from the plant extract[3][1].
- Product or use
- Dye
Environment
- Range
- Europe, including Britain, south from Holland and Germany east to Morocco and W. Asia.
- Habitat
- Calcareous grassland and on dunes[2].
- Light
- full sun
- Shade tolerance
- no shade
- Water
- moderate
- Soil textures
- sandy, loamy
- Soil pH
- neutral, alkaline, very alkaline
- Drainage
- well drained
- Tolerates Nutritionally Poor Soil
- No
- Drought
- intolerant
Propagation
This section contains historical Plants For A Future notes marked noncommercial.
Seed - sow early spring in seed pots in a cold frame and plant out as soon as the plants are large enough to handle. When well sited, the plant should self-sow. If you have sufficient seed it should be possible to sow the seed in situ in the spring.
Cultivation
This section contains historical Plants For A Future notes marked noncommercial.
A native plant, we do not have any details on its cultivation but it should succeed in a summer meadow or in a sunny position in a well drained soil. It prefers calcareous soils in the wild[2].
References
Carruthers. S. P. (Editor) Alternative Enterprises for Agriculture in the UK. Centre for Agricultural Strategy, Univ. of Reading 1986-00-00 ISBN 0704909820
Clapham, Tootin and Warburg. Flora of the British Isles. Cambridge University Press 1962-00-00
Usher. G. A Dictionary of Plants Used by Man. Constable 1974-00-00 ISBN 0094579202