No mulch, other than the grit/pea gravel. No organic matter, it will hold moisture up around the bottom of the leaves and crown of the plant, this could cause rot.
I don't think you would need more sun, just watch them for getting to much sun in the hottest part of the day.
Hope you can figure out why the photos are minimizing when we click on them. Seems to me there is a thread on the Site form for problems with photos taken with phones.
I couldn't find it. Pat can you go to this link and post a new thread asking about what to do with the phone photos, so they won't be small?
http://garden.org/forums/view/... 
