There’s a tree killer on the loose in Oregon, and nobody knows how to stop it. An invasive green beetle called the emerald ash borer arrived in the Midwest from Asia, and it’s killed over 100 ...

In Oregon, an estimated 25% of historic oak habitat has survived and only 1% of native prairies due to clearing for commercial tree plantations, pasture or development. Through the Decade of the ...

Richard Seidman remembers one of the very first trees he planted in Portland in 1989 for Friends of Trees, then his fledgling ...

Garlic mustard has been present in Multnomah County for decades, but the hard work of conservationists has kept it from ...

Spring arrives with Indian plum, trillium, and rhododendrons blooming across Oregon’s forests. This seasonal guide explores ...

Our state is part of the California Floristic Province, which goes from southwestern Oregon to Baja California ... They’re adapted to do well in our gardens. Trees that do well in a small ...