I found this blog this morning by pure accident, but I am so glad I did. Talking Plants by Ketzel Levine is a delight! (Disclaimer: I'm a huge NPR fan and support my local station.)
The blog is full of great plant photos and thoughtful discussion. Science experiments, fantastic photo links like Talking Plants Photo Garden (forgive my redundancy here but they are worth double mention.), a little poetry, birds, recipes for dandelion greens and more, and audio links (try out this one of dogwoods) that could keep you roving for hours.