Just to give ideas, when I think of this theme I picture a forest around a cabin, or a park, an orchard. Maybe something more tropical. The main idea of the theme is to get you familiar with making plants, and to leave a nice model or two on your hard drive for some time in the future, where you will inevitably need it.
Texturing is of course allowed, since a lot of plant life is just a bunch of flat planes with transparency. Without textures, you'd get something like this

With

thanks to gamasutra.com for those
Don't be afraid to go over 2 hours if you have to, by the way. Since texturing is allowed, it's understandable that you may need more time.
This challenge will end on Sunday the 11th at midnight, Pacific Standard Time. GMT would be around 7am Monday. For more time zones, see here.



















