The Hidden Life of Trees by Peter Wohlleben

The Hidden Life of Trees: What They Feel, How They Communicate—Discoveries From a Secret World - Peter Wohlleben

And interesting look at how trees live and function.  Each short chapter covers one or another aspect of tree life, such as water transport, bug-life, roots, growth etc.  I found the writing style too "chatty" with not enough nitty-gritty science.