Earthworks are more about major earth moving projects, like creating ponds, terraces, swales, roads, etc.
The types of projects that you would do with bulldozers and backhoes.
Hedges would fit better in the Plants forum.
This. Exactly this. This is what my therapist has been talking about. And now with a tiny ad:
A rocket mass heater heats your home with one tenth the wood of a conventional wood stove