A very useful video reference, called Seasonal changes over a year in 60 seconds. From the site, “Eirik Solheim has been diligently recording video clips of the same spot from his balcony that overlooks a beautiful park in Oslo, Norway. He would shoot 30-second videos once every week throughout the year, thus capturing all the four seasons, and then compiled all these clips into a single time-lapse video. Thanks Steve.” Site: http://www.labnol.org/internet/all-seasons-time-lapse-video/12329/
This video will help me to study the season change and tree growing.
Although this is using photographs to make of an oak tree as it changes during a year, but it still very useful.
I found one book: The Growing Tree by Brayton Fuller Wilson, which is the book anly sis the detail of how tree growing and developing. I am still reading this book and improving my understanding the behind logic tree growth.