Posted: 17/05/2016 at 23:12
Be careful when getting into disputes with neighbours. If and when you come to sell up and move house, you are required to provide information on disputes with neighbours. If you don't and a purchaser then finds out or they have their own issues which identifies previous disputes, then they could sue you for not disclosing it.
And I also agree with Emma41. You can cut any overhanging growth from neighbours plants without the need to get permission (except if its a tree with a TPO). However, you cannot simply drop or dump what you have cut off into your neighbours garden as you could be done with fly-tipping (yes, seriously true!). You also cannot keep it, because you can be accused of theft. So the only way around it is to offer it back and if they say no, then its up to you to dispose. You can't just throw it over the fence and think its no longer your problem.