Hello Roanne! Thank you for trusting in Kings Electric with your electrical needs. Today we came out to inspect your grounding system in regards to what can be covered and and what must be left visual when the new landscape is installed. We came to a conclusion that you’ll be fine if they rise up 5 - 6" which will still allow some visual of the grounding rods and acorn/clamps. Just make sure that in the process they don’t compromise the wire. It was a pleasure servicing you and we look forward to helping you out in the near future. Your Service Electrician Jeahn Bermudez