Hi,
I’ve had some golden canes and one palm tree ground with a stump grinding service.
I’ve asked for the tree to be ground down enough so I can put stones and pavers in with a retaining wall. Do you think they’ve done it low enough or should I get them back out?
It's been a fair few years since I used a stump grinder so maybe I'm misremembering what it looks like but IMO that doesn't look like it's been ground down at all, just cut as low as they could.
As for it being low enough for your retaining wall, who knows without seeing some diagrams of what's planned, dimensions, drainage etc.