Spring Gentian Bloom — Burren

Each April and May, the limestone pavement of the Burren in County Clare, Ireland, produces one of Western Europe's most extraordinary and unexpected wildflower spectacles as spring gentians — vivid electric-blue flowers no larger than a fingernail — carpet the grey limestone in their thousands, filling the cracks between clints and grykes and spilling across the open pavement in a display of pure saturated blue unmatched by any other European wildflower. The Burren is the only place in the world where Arctic-alpine and Mediterranean plant species grow side by side — mountain avens, bloody cranesbill, and maidenhair fern sharing the same limestone terrace — in a post-glacial botanical community that exists nowhere else on Earth. Walking the limestone terraces above Ballyvaughan in early May, with the Galway Bay glittering below and the gentians at their peak, is one of Ireland's most remarkable natural experiences available entirely for free on open access land. The gentian's extraordinary electric blue — a colour so intense it appears almost illuminated against the grey stone — is visible from fifty metres and creates a landscape effect of great visual drama despite the flower's tiny individual size. The Burren also hosts Ireland's densest population of the marsh fritillary butterfly, which nectars on the devil's bit scabious growing alongside the gentians.