Growing trees for your landscape is a gardening challenge ... Norway Spruce grows in USDA hardiness zones 2 to 7. Douglas Fir, Pseudotsuga menziesii, can grow up to 6 feet tall in five years.

Tree-nursery companies say the drop makes no sense, but others question the environmental value of tree planting.

During the course of a day, they could plant between 2,000 and 4,000 trees, piercing the soil with a shovel, stooping down to bury the roots of a tiny Douglas Fir, pressing the sapling in with a ...

Driving along Oregon 18 in the fall, near mile-marker 25, travelers might catch an unexpected sight: a smiley face in the ...

It's a mix of fast-growing species such as grey alder, coniferous trees such as larch and Douglas fir, and species such as sycamore and oak that will take more than a century to reach maturity.