Hello, the past couple of years i have been taking up a HUGE amount of concrete from different areas in my garden. Many many many tons of the stuff and i just cannot carry it all through my house as there is so much. I have decided to stack it in a corner of my (fortunately) large garden and try to disguise. I have left a hollow in the top and i am getting a ton bag of soil delivered which i am going to put on top. It won't cover the whole pile but i want to plant some sort of ground covering plant in the soil to help hide the concrete. I know its not ideal to bury/hide concrete but i just cannot carry any more of it. The more vigorous the plant the better but something that looks nice also. Any ideas. Thankyou in advance.