PLANTS FOR USE ON THE OREGON AND WASHINGTON COASTAL PLAIN
The planting districts in the northwest are very sharply defined.They include (I) the West Slope; that is, between the coast and themountains, or west of the Cascade Range, and (2) eastern and centralOregon and eastern Washington; that is, all of the district sometimesspoken of as the Inland Empire where conditions show very markedchanges. The following lists of plants apply only to (1), this beingall of the territory west of the Cascade Range exclusive of the mountainslopes and known as the Oregon and Washington Coastal Plain. Noeffort has been made to compile lists for (2) known as the Inland Em-pire. There the rainfall is very much lighter, more snow falls in thewinter, and much hotter days prevail in the summer, although thenights are always cool.