If you are thinking of planting hedges or bare rooted trees or shrubs now is a good time to give some thought to the best timing. From November to March are regarded as normal. My husband has over an eight year period been planting some 1000 hedging plants per year in Norfolk. In that county there is no doubt at all that early planting pays significant dividends. If you are thinking of planting a boundary hedge may I urge you to take note of the Cambridgeshire Police pamphlet on the subject.
Some shrubs make a formidable barrier to thieves.
The pamphlet gives you a comprehensive list of those recommended.