Growing leaves

https://picasaweb.google.com/102994558757338447962/4Seasons#5857511177047632562

As a lot of you may know…I have been working on a animatation that transitions between the season’s…well in the process of doing that I stumbled across this way to animate leaf growth or anything that this would work for really. Made up a short tutorial on how I did it. Thoughts? Did anyone else know about the shift+R keyboard shortcut I used?