How to add more desktop backgrounds to the default Plants group?

Question

I have some additional plants pictures. I love the "Auto change background feature" of Mac OS X. I use "plants" and "change background every minute".

How can I add more pictures in plants or any other of Apple's groups for backgrounds?

Answer 1

Click the [+] button at the bottom of the list:

Then you can choose your own folder of pictures to cycle through.

If you want to include the default Plants photos, they are stored at /Library/Desktop Pictures/Plants. You could add photos to this folder but I don't really recommend it.