Here is the first of a hopefully long list of new Seasons-friendly plants to come: a new version of the rowan tree originally made by Maxis and brought to us by
Callum91 and Numenor in a non-seasonal version which required Family Fun Stuff.
My version requires Seasons but not the stuff pack and has a new GUID. The tree correctly changes with the seasons and drops leaves in the autumn.
No files from Numenor's tree were actually used, but the file names were very helpful in finding the mesh and some textures in the game files.
This tree is based on
Bienchen's template, for which I'm very grateful. I've made quite a few changes, though, so feel free to clone this tree to make your own seasons-friendly trees - it should be easier now.
The tree comes with two recolours and is found in Build/Plants/Trees for 165 simoleons. The mesh has 2970 faces and 3765 vertices.
Download Rowan Tree