I am constantly being asked about what bits and pieces of plants are OK to compost.
Are camphor laurel leaves OK to compost? Yes, they are and, in general, everything is OK to compost except:
Weeds with bulbs or tubers such as oxalis, onion weed and weedy lilies.
Too much edible kitchen refuse like corn or rice may attract rats and mice too.
Other than that, try to mix wet and dry materials evenly:
Wet kitchen refuse plus
Dry autumn leaves
Wet weeds plus
Wet grass clippings plus
Dry leaves and straw