This version continues to say that, after the Crucifixion, Saint Joseph returned to Cornwall, bringing with him the chalice of the Last Supper, known as the Holy Grail. The Holy Grail was hidden and played an important part in the folk history of England in the great national epic about King Arthur and his knights who unsuccessful seek to find it.
Upon reaching Glastonbury, he planted his staff, which took root and blossomed into a thorn tree. This is the Holy Thorn, which flowers at Christmas. King Charles I baited his wife's Roman Catholic chaplain by observing that, although Pope Gregory had proclaimed a reform of the calendar, the Glastonbury Thorn ignored the Pope's decree and continued to blossom on Christmas Day according to the Old Calendar. One of Cromwell's soldiers cut down the Thorn because it was a relic of superstition. We are told that he was blinded by one of the thorns as it fell. A tree allegedly grown from a cutting of the original Thorn survives today in Glastonbury (and trees propagated from it stand on the grounds of the Cathedral in Washington, DC, and presumably elsewhere) and leaves from it are sold in all the tourist shops in Glastonbury.
It was not until about the middle of the 13th century that the legend appears saying Joseph accompanied Saint Philip to Gaul to preach and was sent by him to England as the leader of 12 missionaries. It is said that the company, inspired by Gabriel the archangel, built a church made of wattles in honor of the Virgin Mary on an island called Yniswitrin, given to them by the king of England. The church eventually evolved into Glastonbury Abbey in Somerset. Supposedly Joseph died there, was buried on the island, and miraculous cures worked at his grave. This burial site is unlikely though.
Is there any merit to the legends of Saint Joseph? Perhaps. Tin, an essential ingredient of bronze, was highly valued in ancient times, and Phoenician ships imported tin from Cornwall. It is not unreasonable to believe that some first-century, Jewish Christians might have been investors in the Cornwall tin trade. Christianity gained a foothold in Britain very early, perhaps, in part, because of the commerce in tin. If so, then the early British Christians would have a tradition that they had been evangelized by a wealthy Jewish Christian. Having forgotten his name, they might have consulted the Scriptures and found that Joseph and Saint Barnabas fit the description. Because much of the life of Barnabas was already described by the Acts of the Apostles making him an unlikely candidate, only Joseph was left. Thus, Christians seeking an immediate connection with their Lord, grasped on to Joseph as their evangelizer (Attwater, Benedictines, Bentley, Delaney, Encyclopedia, Robinson, White).
In art, Saint Joseph is portrayed as a very old man, carrying a pot of ointment or a flowering staff or a pair of altar cruets (containing the blood and sweat of Jesus) (White). He may be shown taking the crown of thorns from the dead Christ. At other times he is shown with the shroud and crown of thorns, a thorn tree by him, or a box of spices (Roeder). Click here to see William Blake's Joseph of Arimathea among the Rocks of Albion. He is venerated at Glastonbury and patron of grave-diggers and undertakers (Roeder, White).