filbert

Honeybees forage on Corylus avellana mainly for its plentiful pollen from pendulous male catkins, offering an essential early-season resource for colony buildup in late winter to early spring. Nectar yields are low, making it primarily a pollen contributor rather than a honey flow source. Peak pollen availability aligns with the February to April bloom window in temperate regions, and the multi-stemmed shrub can sucker vigorously, requiring occasional pruning to manage spread.