Typical swarm locations
Southbourne coastal chine gorse and elder scrub on the cliff-face margins is a reliable early-season gathering site. The inter-war residential lime and flowering cherry along Southbourne Grove and Beaufort Road attract swarms in May and June. Promenade esplanade garden walls with coastal valerian and wallflower host clusters in sheltered spots. Chimney stacks and roof voids of the 1920s-30s resort houses produce cavity swarms throughout the season.