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Rubia tinctorum is a rhizomatous herbaceous perennial roots plant which can reach 1m in height. It prefers porous and loose soils. The nature of the soils (acid or alkaline) influences the final color. Calcareous soils increase the amount of dye in the roots. The flowers are very small, have a yellow-green color. Flowering occurs in July. The fruits are small and black.

This is one of the oldest dyes in India and Egypt (archaeological remains in these two regions dating back to the second millennium BC.). It is also used as a pigment (especially for painting) since the Greco-Roman antiquity. It owes its success firstly because of the range of colors it provides especially in the combination with other dyes and secondly to its low cost compared to animal reds; thus, it was used in the Antiquity as an excellent imitation of the murex purple. Its introduction in the Far East is also very old. Its use will disappear with the advent of aniline dyes.

It is also used for its medicinal properties, in particular antibacterial properties and in removing kidney stones.

The rhizomes contain 19 anthraquinonic dyes which the most important are alizarin and purpurin in greater concentration in the bark of rhizomes. The inner part of the root contains a yellow liquid which becomes red in contact with the air. Drying of the rhizome has implications in the contained amount of purpurin: fresh rhizome contains a little amount because purpurin is formed by the transformation of pseudopurpurine.

Rubia tinctorum is a rhizomatous herbaceous perennial roots plant which can reach 1m in height. It prefers porous and loose soils. The nature of the soils (acid or alkaline) influences the final color. Calcareous soils increase the amount of dye in the roots. The flowers are very small, have a yellow-green color. Flowering occurs in July. The fruits are small and black.

This is one of the oldest dyes in India and Egypt (archaeological remains in these two regions dating back to the second millennium BC.). It is also used as a pigment (especially for painting) since the Greco-Roman antiquity. It owes its success firstly because of the range of colors it provides especially in the combination with other dyes and secondly to its low cost compared to animal reds; thus, it was used in the Antiquity as an excellent imitation of the murex purple. Its introduction in the Far East is also very old. Its use will disappear with the advent of aniline dyes.

It is also used for its medicinal properties, in particular antibacterial properties and in removing kidney stones.

The rhizomes contain 19 anthraquinonic dyes which the most important are alizarin and purpurin in greater concentration in the bark of rhizomes. The inner part of the root contains a yellow liquid which becomes red in contact with the air. Drying of the rhizome has implications in the contained amount of purpurin: fresh rhizome contains a little amount because purpurin is formed by the transformation of pseudopurpurine.

Rubia tinctorum is a rhizomatous herbaceous perennial roots plant which can reach 1m in height. It prefers porous and loose soils. The nature of the soils (acid or alkaline) influences the final color. Calcareous soils increase the amount of dye in the roots. The flowers are very small, have a yellow-green color. Flowering occurs in July. The fruits are small and black.

This is one of the oldest dyes in India and Egypt (archaeological remains in these two regions dating back to the second millennium BC.). It is also used as a pigment (especially for painting) since the Greco-Roman antiquity. It owes its success firstly because of the range of colors it provides especially in the combination with other dyes and secondly to its low cost compared to animal reds; thus, it was used in the Antiquity as an excellent imitation of the murex purple. Its introduction in the Far East is also very old. Its use will disappear with the advent of aniline dyes.

It is also used for its medicinal properties, in particular antibacterial properties and in removing kidney stones.

The rhizomes contain 19 anthraquinonic dyes which the most important are alizarin and purpurin in greater concentration in the bark of rhizomes. The inner part of the root contains a yellow liquid which becomes red in contact with the air. Drying of the rhizome has implications in the contained amount of purpurin: fresh rhizome contains a little amount because purpurin is formed by the transformation of pseudopurpurine.

Rubia tinctorum is a rhizomatous herbaceous perennial roots plant which can reach 1m in height. It prefers porous and loose soils. The nature of the soils (acid or alkaline) influences the final color. Calcareous soils increase the amount of dye in the roots. The flowers are very small, have a yellow-green color. Flowering occurs in July. The fruits are small and black.

This is one of the oldest dyes in India and Egypt (archaeological remains in these two regions dating back to the second millennium BC.). It is also used as a pigment (especially for painting) since the Greco-Roman antiquity. It owes its success firstly because of the range of colors it provides especially in the combination with other dyes and secondly to its low cost compared to animal reds; thus, it was used in the Antiquity as an excellent imitation of the murex purple. Its introduction in the Far East is also very old. Its use will disappear with the advent of aniline dyes.

It is also used for its medicinal properties, in particular antibacterial properties and in removing kidney stones.

The rhizomes contain 19 anthraquinonic dyes which the most important are alizarin and purpurin in greater concentration in the bark of rhizomes. The inner part of the root contains a yellow liquid which becomes red in contact with the air. Drying of the rhizome has implications in the contained amount of purpurin: fresh rhizome contains a little amount because purpurin is formed by the transformation of pseudopurpurine.

Sophora japonica is a tree with twisted branches up to 15 to 20m in height. Flowers butterfly shaped have a creamy-white or pale pink color and form fragrant clusters. Flowering occurs in July-August. They produce honey. The fruits are pods containing black seeds. Flowering appears only in trees of more than twenty years old.

It is hardy and can withstand low temperatures in sheltered position. However it thrives best in a mild climate in a sunny exposure. It likes light, drained and slightly calcareous soils.
The tree gets its name because it is traditionally planted near pagodas in Asia. Its use is  primarily ornamental, in gardens or as bonsai. It is also used as a timber.

Sophora japonica belongs to the fundamental fifty plants of Chinese medicine. The buds are used in Chinese pharmacopoeia as antihemorrhagic. Flowers were also employed in the manufacture of cosmetics.

The buds of the flower contain a dye, the rutin which is a flavonol. It is used for dyeing textiles and paper.

Sophora japonica is a tree with twisted branches up to 15 to 20m in height. Flowers butterfly shaped have a creamy-white or pale pink color and form fragrant clusters. Flowering occurs in July-August. They produce honey. The fruits are pods containing black seeds. Flowering appears only in trees of more than twenty years old.

It is hardy and can withstand low temperatures in sheltered position. However it thrives best in a mild climate in a sunny exposure. It likes light, drained and slightly calcareous soils.
The tree gets its name because it is traditionally planted near pagodas in Asia. Its use is  primarily ornamental, in gardens or as bonsai. It is also used as a timber.

Sophora japonica belongs to the fundamental fifty plants of Chinese medicine. The buds are used in Chinese pharmacopoeia as antihemorrhagic. Flowers were also employed in the manufacture of cosmetics.

The buds of the flower contain a dye, the rutin which is a flavonol. It is used for dyeing textiles and paper.

Sophora japonica is a tree with twisted branches up to 15 to 20m in height. Flowers butterfly shaped have a creamy-white or pale pink color and form fragrant clusters. Flowering occurs in July-August. They produce honey. The fruits are pods containing black seeds. Flowering appears only in trees of more than twenty years old.

It is hardy and can withstand low temperatures in sheltered position. However it thrives best in a mild climate in a sunny exposure. It likes light, drained and slightly calcareous soils.
The tree gets its name because it is traditionally planted near pagodas in Asia. Its use is  primarily ornamental, in gardens or as bonsai. It is also used as a timber.

Sophora japonica belongs to the fundamental fifty plants of Chinese medicine. The buds are used in Chinese pharmacopoeia as antihemorrhagic. Flowers were also employed in the manufacture of cosmetics.

The buds of the flower contain a dye, the rutin which is a flavonol. It is used for dyeing textiles and paper.

Sophora japonica is a tree with twisted branches up to 15 to 20m in height. Flowers butterfly shaped have a creamy-white or pale pink color and form fragrant clusters. Flowering occurs in July-August. They produce honey. The fruits are pods containing black seeds. Flowering appears only in trees of more than twenty years old.

It is hardy and can withstand low temperatures in sheltered position. However it thrives best in a mild climate in a sunny exposure. It likes light, drained and slightly calcareous soils.
The tree gets its name because it is traditionally planted near pagodas in Asia. Its use is  primarily ornamental, in gardens or as bonsai. It is also used as a timber.

Sophora japonica belongs to the fundamental fifty plants of Chinese medicine. The buds are used in Chinese pharmacopoeia as antihemorrhagic. Flowers were also employed in the manufacture of cosmetics.

The buds of the flower contain a dye, the rutin which is a flavonol. It is used for dyeing textiles and paper.

Sophora japonica is a tree with twisted branches up to 15 to 20m in height. Flowers butterfly shaped have a creamy-white or pale pink color and form fragrant clusters. Flowering occurs in July-August. They produce honey. The fruits are pods containing black seeds. Flowering appears only in trees of more than twenty years old.

It is hardy and can withstand low temperatures in sheltered position. However it thrives best in a mild climate in a sunny exposure. It likes light, drained and slightly calcareous soils.
The tree gets its name because it is traditionally planted near pagodas in Asia. Its use is  primarily ornamental, in gardens or as bonsai. It is also used as a timber.

Sophora japonica belongs to the fundamental fifty plants of Chinese medicine. The buds are used in Chinese pharmacopoeia as antihemorrhagic. Flowers were also employed in the manufacture of cosmetics.

The buds of the flower contain a dye, the rutin which is a flavonol. It is used for dyeing textiles and paper.