If you're trying to turn this into one of those daft pun threads, you're barking up the wrong tree, you sap!
However, a good pun thread is always poplar. Folks pine when they don't get one for a while, as they really spruce the place up. It's fir our own good though that we don't get too many, as if we did someone would go over the top and call the copse. That's the real root of the problem.