Gentiana scabra, or rough gentian is fairly easy to grow, by Gentian standards. It does well in bright light (partial shade is fine), and well drained organic soil. Like most gentians, this one is a lovely shade of purple-blue and is quite floriferous.
Here is some general advice for growing gentians:
- gentians don’t like to be disturbed (don’t disturb their roots)
- lots of light
- never let soil dry out: well-drained soil
- try to mimic natural conditions for each species
- sometimes germination can take years, it is easier to start with plants.
- some species need chilling after they have been sown.
- some species have mycorrhizae (they live in symbiosis with fungi)