Country diary: limestone heath is a piece of ecological magic

Goblin Combe, Somerset This is one of those rare habitats where lime-hating and lime-loving plants suck together from the same earth, roots entangled There is no doubt when you are on the carboniferous limestone. Crags jut out as if the rock is struggling to release itself from its turfy skin, shedding broken stones. Sheep’s fescue, rockrose, kidney vetch and many more lime-loving species form the distinctive close-knit grassland. The signature of this rock is written all over the hill.At