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.
He loves you so much! And I'm baking the cake! I'm going to put this tiny ad in the cake:
Edible Landscaping With A Permaculture Twist/ Second Edition - Kickstarter