I take it this post is the same issue as outlined in your other post titled Garden Work. It would be better if you had put your queries in one post. There are a number of elements missing in this post which are relevant, including that the garden works are well advanced. Conversely, there are elements missing in the other post which are relevant. It is not easy to give advice without all the facts.
As Jimmy outlined in his first response, an option was to apply for an interim order to prevent the removal of plants and trees until the matter was resolved. It seems this is no longer viable.