The Treflach landscape swarms with drumlins (from the Irish ‘little ridge’). Drumlins were formed beneath glaciers ten thousand years ago creating egg shaped small hills with a gentle gradient hill terminating in a steep slope. On the slopes that are not wooded the harebell can be found, almost invisible until it flowers from July to the first frosts, with such a long flowering season the bumble bees love them. The plant forms small clumps and spreads by underground rhizomes. The harebell seems very delicate to look at but are in fact quite robust, cattle will graze around them, they don’t like competition so specific grazing management allows them to flourish.