R. tibetica is the smallest Roscoea of the genus of the hardy gingers and is highly variable. To my best of knowledge the plant I collected seeds of fits the description of Roscoea tibetica. But because it is of cultivated origin and I cannot track back the original seed collection I have marked it B-15. In case it proves to be other species in the near future (which is not impossible because quite a few Roscoea ssp. had entered misnamed into cultivation), we can easily change the labels.
The wide leaves are disposed in a rosette and the flowers remain almost entirely enclosed within the leafs. They are deep purple so it fits to R. tibetica f. atropurpurea (The Genus Roscoea – Jill Cowley, RBG Kew, 2007). Also, very particular, the capsule develops inside the pseudostem and at maturity it will split open to release the seeds.
For the collector of the Roscoea; you need a small trough or a nice nook in the rockery just for it. Best with light shade.
Germination: easy, with 1-2 months of cold-moist period, but I have also germinated seeds without stratification. It forms fleshy small roots that need good drainage and careful handling. Flowering starts after 2-3 years, depending on how well the root system develops.