Hi! I plan to frame and mount these panels on the wall. They are 6' tall and so they'll end up about 6.5' once mounted. I need to plant in-between them (the pots wont be there). Something that will grow around 7'-ish (or able to be maintained around there) for privacy and easily kept in the 3' space between the panels. My thoughts are chollipo euonymus, Euonymus japonicus 'Silver King' or Emerald Colonnade Holly. The two trees on the outside are a Watermelon Tuskegee Crape Myrtle and an Arbutus Marina.

My Hardiness Zone is 9 and Sunset Zone 18. Santa Clarita, CA

Thank you!!