Hello   I am looking in to the possibility of using Ecoplugs on standing Rhododndron.   I would drill in to the side of the stump and insert plug, Ecoplugs website says they are better used from the side, so thats good   Just wondering if anyone has any experience with using Ecoplugs this way and if so, what time of year, how many, size of stump and so on.   Thanks for your help   Tom