A blackthorn winter. Traditionally a spell of cold weather in early April that coincides with the blossoming of blackthorn in the hedgerows. A tree of folklore and of magic spells. #blackthorn #Derbyshire https://t.co/gMaPwElKOCA blackthorn winter. Traditionally a spell of cold weather in early April that coincides with the 5493765 A blackthorn winter. Traditionally a spell of cold weather in early April that coincides with the blossoming