Hello my name is ***** ***** I will help you with this.
Whose land was the tree on?
Ok - then no you dont have to do anything.
If you want to have the tree planted you can - but if you refuse there is nothing your neighbour can do.
So its up to you what you do, if anything.
Can I clarify anything for you about this today please?
Legally you don't have to, but as you said it may help relations.
If this answers your question could I invite you to rate my answer before you go today, otherwise the site doesn’t pay me for the time spent with you. Thanks in advance and good luck.