We have The Domain in Sydney which hosts events and concerts too, so large crowds also are fine to some degree. I assume water and sun and fertiliser go a long

We have The Domain in Sydney which hosts events and concerts too, so large crowds also are fine to some degree. I assume water and sun and fertiliser go a long way. But I've seen in other areas (and probably The Domain but I rarely go) they will put up temporary construction fences for regeneration when it needs a break and starts to show dirt.