In the shade of the ruins of the Heisterbach, beautiful flowers grow, among them rare ones like the wild tulip.
If you walk around Mount Lohrberg in June and July, you will see bright purple digitales in front of and between the deep green conifers.
Colourful flowers also sprout in the walls of the castle ruins, here pictures of Rosenau Castle and Löwenburg Castle.
On a hike through the Siebengebirge, you will see countless other flowers, some of which you will find here. As far as I could determine them, the names are added.