Pseudotsuga menziesii, or douglas fir, is native tree species to North America from the coastal regions from west-central British Columbia southward to Central California and thrives in areas with abundant air and soil moisture. It prefers well-aerated, deep soils, with a pH range from 5 to 6. While it is one of the largest tree species, it can be prone to significant damage from fungal diseases. Due to its size and specific growing conditions, douglas fir is generally not suitable for most urban landscapes.