Blackthorn (Prunus spinosa Phylum Anthophyta Class Magnoliopsida Order Rosales Family Rosaceae Genus Prunus Widespread in Britain southwards of Sutherland and Caithness and reaching altitudes of up to 415m in Yorkshire. Elsewhere, this shrub is found in Europe with the exceptions of the far north and north-east, and extends as far east as Iran. It also occurs in south-western Siberia. Blackthorn is related to the plums. With a shrub height of 1-4m, its typical habitats include hedgerows, woodlands, scrub, cliff slopes and screes. On shingle beaches a prostrate form of blackthorn may occur. This shrub can tolerate a wide range of soil types. It doesn't like heavy shade, but will provide protection for smaller plants growing underneath, and withstands strong winds. As it doesn't mind wet either it is a good plant for coastal areas. Will thrive on quite poor soil but doesn't like chalk. Blackthorn sends up many suckers which can be controlled by mowing, unless you particularly want a dense thicket. This is a very |
The bark is black with long, quite vicious spines and the small leaves are serrated and dull green in colour and measure from 2 to 4 cm in length. The leaves provide food for the larvae of Black and Brown Hairstreak butterflies. The tree is also the food plant for the caterpillars of the following moths - March, Common Emerald, Little Emerald, Mottle Pug, Feathered Thorn, Orange, Scalloped Hazel, Scalloped Oak, Swallowtailed, Brimstone, August Thorn, Early Thorn, Pale Brindled Beauty, Blue Bordered Carpet, Broken Barred Carpet, November, Pale November, Winter, Sloe Pug, Green Pug, Sharp Angled Peacock and The Magpie. In fact, Blackthorn supports around 153 species of wildlife.
| Blackthorn is very valuable to birds as a nesting site. Blackbird, song
thrush, finches, common whitethroat and wood pigeon are among the more common
users. The beautiful white blossom tends to appear early in the year before the leaves. The single, white flowers are among the first to be seen in hedgerows from late February to early March and their appearance often seems to coincide with a period of bad weather, the so-called 'blackthorn winter'. These 'heralds of spring' attract early insects to pollinate them. The flowers are pollinated by a range of insects. The flowers produce nectar for bumblebees and early-flying Small Tortoiseshell butterflies.  |
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The bitter fruits it produces are round blue-black berries known as sloes, and are used to make sloe gin and a damson-like (but incredibly bitter!) flavour. They are bluish-black in colour and often have a whitish powdery bloom. The flesh is green and there is a single stone inside. Fruit diameter: 10-15 mm In addition to flavouring gin, sloes are used in jellies, conserves and syrups and were made to make sloe wine, an alternative to port. They have also been put to various uses in folk-medicine. The flowers are edible and the leaves have been dried and used as a substitute for tea. Furthermore, dyes have been obtained form the fruits, leaves and bark. The wood of blackthorn is extremely hard and is highly valued for making walking sticks as it shows interesting patterns and knot-holes.  |
The sharp thorns have been used for centuries as awls. Blackthorn is also the traditional wood used in wands for tribal medicine people and wise women etc. It is also used to make the traditional Irish shillelagh - cudgel - used in sports. The tree also makes good firewood, marquetry and walking sticks.
The dried juice of the berries makes gum acacia. The flowers and fruit make a good tonic for diarrhoea and other bowel problems. Sloe syrup has anti-rheumatic properties and can help fight flu. The plant is also good for nosebleeds, constipation and eye pain. Sloe berries were first used by herbalists for treating stomach problems and blood disorders. They are still used in wine, gin and vodka as flavouring. Sloes can also be made into a paste for whitening teeth and removing tartar. The berries taste better and not so bitter if harvested after a few frosts. Ancient folk used to bury the sloes in straw-lined pits for a few months to ripen them and make them sweeter. A Neolithic lake village in Glastonbury was found to have such a pit, full of sloe stones.
| This thorny native plant has much folklore surrounding it. Also known as
Snag. It was believed that Christ's Crown of Thorns was made from Blackthorn. To bring Blackthorn blossom into the home meant a certain death would follow. In Herefordshire and Worcestershire, a wreath or globe of Blackthorn twigs would be scorched on a fire on New Year's morning and then burned in a wheatfield in the furrows and its ashes scattered over the wheat. Then a new globe or wreath would be made and hung in the farmhouse kitchen ready for next year. It was believed that this ritual would rid the field of the devil. In a similar vein, Blackthorn would be scorched and hung up with mistletoe for good luck. Blackthorn in bloom is considered an emblem of life and death together as the flowers appear when the tree has no leaves, just black bark and thorns. It is considered wise not to grow three trees closely together. It is said that a Hawthorn will destroy any Blackthorn near it. On the Isle of Man it is believed that if the Blackthorn and the Hawthorn have many berries then the ensuing winter will be severe.  |
In Irish folklore it was believed that the "little people" lived in Blackthorn bushes. Fairy tribes, called Lunantishees, are said to guard Blackthorn trees and will not let you cut branches off it on 11 November or 11 May - if you do you will be cursed with bad luck. It was also bad luck to wear the flowers in your buttonhole. Another belief was that a Blackthorn wand with thorns fixed to the ends was harmful; while a carved rod carried by Devonshire witches was thought to cause miscarriage.
Feeding and other inter-species relationships Associated with Prunus spinosa:
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