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Summary
Physical Characteristics
Alkanna tinctoria is a PERENNIAL growing to 0.2 m (0ft 8in) by 0.3 m (1ft). It is in flower in June. The species is hermaphrodite (has both male and female organs).
Suitable for: light (sandy) and medium (loamy) soils, prefers well-drained soil and can grow in nutritionally poor soil. Suitable pH: neutral and basic (mildly alkaline) soils. It can grow in semi-shade (light woodland) or no shade. It prefers dry or moist soil and can tolerate drought. The plant can tolerate maritime exposure.
UK Hardiness Map
US Hardiness Map
Synonyms
Anchusa tinctoria.
Habitats
Woodland Garden Dappled Shade; Cultivated Beds;
Edible Uses
Edible Parts: Leaves
Edible Uses: Colouring
Used as a vegetable[177]. No further details are given. A red dye obtained from the roots is used as a food colouring[238].
References More on Edible Uses
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.
Antibacterial Antidiarrhoeal Antipruritic Astringent Demulcent Expectorant Vulnerary
The root is antibacterial, antipruritic, astringent and vulnerary[238].It is used externally in the treatment of varicose veins, indolent ulcers, bed sores and itching rashes[238]. Used internally to treat cough and bronchial catarrh (see known hazards above). Used in the treatment of skin wounds and diarrhoea [301].The root is harvested in the autumn and can be dried for later use[238]. All plant parts are demulcent and expectorant [301].
References More on Medicinal Uses
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Other Uses
Dye Litmus
A red dye is obtained from the roots[57, 89, 171], it is used by pharmacists as well as in perfumes and to stain wood or marble[100, 238]. The dye is also used in thermometers[100] and as a litmus to test for acids and alkalines[148]. It can make wood look like rosewood or mahogany[4, 148].
Special Uses
References More on Other Uses
Cultivation details
Prefers a well-drained sandy or loamy soil[1] in sun or partial shade[238]. Dislikes acid soils[1] but thrives in alkaline soils[238]. A very drought tolerant plant when established[200], succeeding in a hot dry position[187], it is a useful plant for dry sandy or alkaline soils[238]. Plants are hardy to about -10°c[187]. This species is occasionally cultivated as a dye plant[61]. One report says that it is cultivated for its seed[46].
References Carbon Farming Information and Carbon Sequestration Information
Temperature Converter
Type a value in the Celsius field to convert the value to Fahrenheit:
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Propagation
Seed - sow spring in a cold frame. When large enough to handle, prick the seedlings out into individual pots and plant them out in the summer. Division in spring. Fairly easy, they can be planted straight out into their permanent positions if required. Basal cuttings of new growth in late spring. Harvest the young shoots when they are about 10 - 15cm long and pot them up into individual pots in a lightly shaded position in a greenhouse. They should root well within a few weeks and can be planted out in the summer[K]. Root cuttings in late winter[200].
Other Names
If available other names are mentioned here
Found In
Countries where the plant has been found are listed here if the information is available
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.
Conservation Status
IUCN Red List of Threatened Plants Status :
Growth: S = slow M = medium F = fast. Soil: L = light (sandy) M = medium H = heavy (clay). pH: A = acid N = neutral B = basic (alkaline). Shade: F = full shade S = semi-shade N = no shade. Moisture: D = dry M = Moist We = wet Wa = water.
Expert comment
Author
(L.)Taush.
Botanical References
45200
Links / References
For a list of references used on this page please go here
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Subject : Alkanna tinctoria
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