Western redcedar (Thuja plicata, I'm pretty sure)?
I don't want to be a downer, but if it is you might be in trouble. Redcedar is allelopathic, meaning it contains chemicals that kill other plants. It would make a great suppressive landscape mulch, but a bad garden mulch.
Sounds like it'll mess with insects, bacteria, and fungus, but it's likely not chemically allelopathic. Also, plant life is certainly repressed near living redcedars, but that's likely due to something else like low light.