When it was relocated to its current location in May 2017, there was a lawn on the tree-planting zone that bounded the road in front of it and the parking lot. However, weeds started to grow from between the lawns, and it is a prominent place, so it seems that once a week, the staff members went out early and pulled out the weeds.
If we do weeding once in a while, it will hurt our work every week. So just a year later, the grass was replaced with a GUD block.
As a result,
"Weeds are no longer growing at all, and I am saved because I am maintenance free."
I was pleased.
Also, it seems that you liked the appearance,
"When it rains and gets wet, the color becomes more vivid and it's really beautiful. And the drainage is also good."
You said that.