Sunday, 1 May 2011
A fabulous and rarely seen late summer and autumn flowering species. The elegant clear blue flowers appear at the tips of a cluster of upright 6 inch stems in August and September. The narrow leaves typically turn yellowish toward the end of the season making a very pleasing combination.
This is not one of the Asiatic autumn flowering gentians. This one comes from the Caucasus and does not require acid soil. In fact, despite warnings to the contrary, I have found this an easy going species for rock gardens and raised beds.