Soils

Soil extends only a few inches to approximately six feet below the Earth’s surface. This thin layer of material supports all plant life on the planet and ultimately all animals, including us.  Soil type impacts the amount of fertilizer you need, how deep plant and tree roots will grow, whether an area will be predisposed to mud and the best layout for structures on your property. The fact sheets below provide guidance on soil types and surveys, soil conservation and protection, soil sampling and testing, soil fertility and liming.

King County Soil Descriptions

Liming

Soil Sampling

Soil Testing Labs

What are Soils (and why are they important)