Do the granules have to rest on the surface of the lily or will they be fine on the bottom next to the root structure? I know that some granular chemical companies, such as renovate OTF recommend that you apply the granules to the surface of the lily when there is early morning dew present... This will be impossible with my situation because my lilies are young and scattered. No real continuous mat has formed. Sorry for all the questions but I just want to make sure I do it right the first time.