Gentiana scabra buergeri

 

Botanical Name : Gentiana scabra buergeri
Family: Gentianaceae
Tribes: Gentianeae
Subtribes: Gentianinae
Genus: Gentiana
Sectio: G. sect. Pneumonanthe
Species: Gentiana scabra
Varietas: Gentiana scabra var. buergeri

Common name: Japanese Gentian, Chinese gentian

Habitat : Gentiana scabra buergeri is native to E. Asia – China, Japan. It grows on the thickets, grassy places and wet meadows at low elevations and in the mountains of C. and S. Japan.

Description:
Gentiana scabra buergeri is a hardy perennial plant, growing to 0.5 m (1ft 8in).
It is hardy to zone (UK) 5. It is in flower from Aug to September. The flowers are hermaphrodite (have both male and female organs) and are pollinated by Bumblebees, butterflies.

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This lovely late-flowering gentian, one of the most famous of the hybrids, opens abundant blossoms from August up to the beginning of November, its dazzling-blue, bell-shaped flowers covering the leaves. Darker than the normal pale blue form, this is one of the very few gentians to possess any perfume or fragrance, and it has been used to create special cosmetics in China and Japan. Traditionally, this plant is used in Chinese medicine as a cure for liver diseases and intestinal troubles, whilst its roots provide an extremely bitter substance to stimulate the appetite, and in olden times the plant was used as a famine food, none of which uses we recommend!

Cultivation:
In general, gentians require a moist well-drained soil in a sheltered position, a certain minimum of atmospheric humidity, high light intensity but a site where temperatures are not too high. They are therefore more difficult to grow in areas with hot summers and in such a region they appreciate some protection from the strongest sunlight. Most species will grow well in the rock garden. This species is happy in any reasonable soil. A moisture loving plant, preferring to grow with full exposure to the sun but with plenty of underground moisture in the summer, it grows better in the north and west of Britain. A very ornamental plant. Plants are intolerant of root disturbance.

Propagation :
Seed – best sown as soon as it is ripe in a light position in a cold frame. It can also be sown in late winter or early spring but the seed germinates best if given a period of cold stratification and quickly loses viability when stored, with older seed germinating slowly and erratically. It is advantageous to keep the seed at about 10°c for a few days after sowing, to enable the seed to imbibe moisture. Following this with a period of at least 5 – 6 weeks with temperatures falling to between 0 and -5°c will usually produce reasonable germination. It is best to use clay pots, since plastic ones do not drain so freely and the moister conditions encourage the growth of moss, which will prevent germination of the seed. The seed should be surface-sown, or only covered with a very light dressing of compost. The seed requires dark for germination, so the pots should be covered with something like newspaper or be kept in the dark. Pot up the seedlings into individual pots as soon as they are large enough to handle and grow on in light shade in the greenhouse for at least their first winter. The seedlings grow on very slowly, taking 2 – 7 years to reach flowering size. When the plants are of sufficient size, place them out into their permanent positions in late spring or early summer. Division in March. Most members of this genus have either a single tap-root, or a compact root system united in a single root head, and are thus unsuitable for division. Cuttings of basal shoots in late spring
Edible Uses: Young plant and old leaves – cooked. A famine food, used when all else fails

Medicinal Uses:
The root is antibacterial and stomachic. It is used in the treatment of jaundice, leucorrhoea, eczema, conjunctivitis, sore throat, acute infection of the urinary system, hypertension with dizziness and tinnitus. The root is harvested in the autumn and dried for later use. This species is one of several that are the source of the medicinal gentian root, the following notes are based on the general uses of G. lutea which is the most commonly used species in the West. Gentian root has a long history of use as a herbal bitter in the treatment of digestive disorders and is an ingredient of many proprietary medicines. It contains some of the most bitter compounds known and is used as a scientific basis for measuring bitterness. It is especially useful in states of exhaustion from chronic disease and in all cases of debility, weakness of the digestive system and lack of appetite. It is one of the best strengtheners of the human system, stimulating the liver, gall bladder and digestive system, and is an excellent tonic to combine with a purgative in order to prevent its debilitating effects. The root is anthelmintic, anti-inflammatory, antiseptic, bitter tonic, cholagogue, emmenagogue, febrifuge, refrigerant, stomachic. It is taken internally in the treatment of liver complaints, indigestion, gastric infections and anorexia. It should not be prescribed for patients with gastric or duodenal ulcers. The root is harvested in the autumn and dried for later use. It is quite likely that the roots of plants that have not flowered are the richest in medicinal properties.

Disclaimer : The information presented herein is intended for educational purposes only. Individual results may vary, and before using any supplement, it is always advisable to consult with your own health care provider.
Resources:
https://species.wikimedia.org/wiki/Gentiana_scabra_var._buergeri
http://www.plant-world-seeds.com/store/view_seed_item/4297
http://www.pfaf.org/user/Plant.aspx?LatinName=Gentiana+scabra+buergeri

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