A few years ago, this traffic splitter had a magnificent overgrowth goin’ on:
Eventually, somebody (perhaps the NYS DOT) cut the bushes off at their bases and probably hit them with defoliant to keep them down:
I don’t know that the stems cracked the concrete, but they surely eased the slabs apart.
The signpost had a substantial bush at its base:
It’s tough to keep civilization running ahead of Mother Nature …