By Susie Beever A gardener has been fined £27,000 after she hacked down next door’s hedgerow to make her flowerbed bigger, both branding one another the “neighbour from hell”. Green-fingered Tersia Van Zyl and her husband Stiaan landed the hefty court bill after their neighbour Peter Walker-Smith took them to court over the horticultural dispute. Mr Walker-Smith got prickly after his neighbours reportedly chopped down the holly bush separating their Surrey gardens in April 2019 and replaced it with a fence. The couple paid contractors to tear down the hedge in order to free up an extra two fee…