yes it is true, you can take your cuttings from anywhere. Just make sure that you take cuttings that are at least 3 inches long so that you can handle them with ease
and they, oops, I clone hydro. Are you looking for info on that? If so, check out Hydro forum...look for clones in 10 days/homemade bubbler...this is a cheap and very easy way to clone...hope this helps....goodnight