Leaves and needles that clog local gutters
Trees common across this region drop various organic materials into drainage systems, though the exact mix differs across Maryland. Deciduous species like broadleaf live oak, water oak, sweetgum, and red maple drop leaves and heavy sweetgum balls. Southern magnolia trees lose large waxy leaves and thick seed pods. Conifer trees, including loblolly pine, longleaf pine, and slash pine, drop needles that slip into channels and form tight mats over downspout openings. Springtime brings coat after coat of sticky yellow pollen that glues small debris together, while mature trees drop acorns in late summer. Pine needles drop all year long, requiring continuous clearing so water flows freely through the entire gutter network.