Jon - to answer your question, plants derived from purchased plants will not work for people who do not have them as well. I don't think there is a problem with distributing your customized plants as long as you make it clear in the readme text of your freestuff that these plants require the previous purchase of other plants. It is equivalent to distributing textures for an object available commercially. You would have to buy the object to be able to use the textures.

• agiel - www.linfa.net