The Softhouse XFrog inc. released 145 free new plants. As many know, X-Frog is a stand-alone program (or plugin for Maya or Cinema4D), for the creation of plants, flowers and trees realistic, with the ability to animate the growth.
In addition, until April 7, 2014, applies a discount of 50% on all products Xfrog
For more info about X-Frog: http://xfrog.com/
For free download of the plants: http://xfrog.com/category/samples.html