Bee swarm in Holywell? Help is a minute away.

Holywell (Treffynnon) is a hilltop market town above the Greenfield Valley, famous for the medieval pilgrimage site of St Winefride's Well. The Greenfield Valley Heritage Park runs down from the town to the Dee estuary foreshore, carrying a dense mix of ancient oak, alder and sycamore along the wooded gorge and a rich understorey of hawthorn, hazel and blackthorn. Bramble is exceptionally heavy on the valley margins; white clover on the hilltop farmland and the town's amenity grassland supplements the valley forage. The Flint and District BKA covers Holywell.

Sycamore is the dominant flow tree throughout Flintshire, lining the lanes and valley sides from the Alyn valley near Mold to the wooded dingles of the Greenfield Valley. Hawthorn hedgerows are exceptionally strong on the Halkyn plateau and the Hawarden ridge, delivering a reliable May flow across the county. Lime trees in the older town centres and on the Mold and Caerwys market streets contribute a July supplement. White clover is widespread on the pastures and recreation grounds of the lower valleys and coastal plain. Bramble is abundant on the former industrial and railway land around Shotton, Buckley and the Greenfield Valley margins. Gorse on Halkyn Mountain provides a late-winter and spring pollen source. Alder and willow along the Dee foreshore and the Alyn riverbanks contribute early pollen for colonies emerging in spring.