From the the Caucasus comes this gem with small grass-like leaves and the largest flowers we have seen on any gentian. The huge upturned, pointed, white-throated blue trumpets elicit more garden comments than any other gentian, all summer and autumn.
Seeds can be sown at any time but are best sown in winter or early spring to benefit from a cold spell in the wet compost to break their dormancy. We advise covering seeds very thinly with sand or fine grit to about the depth of the seed size. If the seeds do not come up within 6 to 12 weeks the damp seed tray can be given cold treatment in a fridge for about four weeks. They may still take very many months to appear, so please never discard the pot or tray.