Donnerlüttchen (July) Donnerlüttchen (August) Donnerlüttchen Large rosettes, purple leaves with grey-green tips. £3.00 Out of stock. Large, flat rosettes, purple leaves with pale, grey-green leaf tips and all with a metallic sheen in dry conditions. Makes impressive clumps and is a quick grower. 'Thunderbolt' in German. Bred by Volkmar Schara 2003 Supplied as an established, growing plant in a 9cm pot, like all our plants.