Gentiana Macrophylla, Large Leaf Gentian Seed, Qin Jiao
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Gentiana Macrophylla < 秦艽 Qin Jiao >
Common Name: Large Leaf Gentian
Binomial name: Gentiana Macrophylla
Gentiana macrophylla, Large leaf Gentian, is called Qin Jiao in Chinese. Synonyms include G. staminea, G. crassiaulisor, and G. dahurica. A perennial member of the Gentiana genus in the family Gentianaceae. 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.
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