There were many popular superstitions connected with Midsummer Eve. It was believed that if any one sat up fasting all night in the church porch, he would see the spirits of those who were to die in the parish during the ensuing twelve months come and knock at the church door, in the order in which they were to die.
It was customary on this evening to gather certain plants which were supposed to have magical properties. Fern-seed, for instance, being on the back of the leaf and in some species hardly discernible, was thought to have the power of rendering the possessor invisible, if it was gathered at this time. In some places it was believed that the seed must be got at midnight by letting it fall into a plate without touching the plant.
We find many allusions to fern-seed in Elizabethan writers. In 1 Henry IV. (ii. 1. 95) Gadshill says: "We steal as in a castle, cock-sure; we have the receipt of fern-seed, we walk invisible"; to which the Chamberlain replies: "Nay, by my faith, I think ye are more beholding to the night than to fern-seed for your walking invisible." In Ben Jonson's New Inn (i. 1) one of the characters says:—
"I had
No medicine, sir, to go invisible,
No fern-seed in my pocket."
In Plaine Percevall, a tract of the time of Elizabeth, we read: "I think the mad slave hath tasted on a fern-stalk, that he walks so invisible."
Scot, in his Discoverie of Witchcraft (1584), directs us, as protection against witches, to "hang boughs (hallowed on Midsummer Day) at the stall door where the cattle stand."
St. John's wort, vervain, orpine, and rue were among the plants gathered on Midsummer Eve on account of their supernatural virtue. Each was supposed to have its peculiar use in popular magic. Orpine, for instance, was set in clay upon pieces of slate, and called a "Midsummer man." According as the stalk was found next morning to incline to the right or the left, the anxious maiden knew whether her lover would prove true to her or not. Young women also sought at this time for what they called pieces of coal, but in reality hard, black, dead roots, often found under the living mugwort; and these they put under their pillows that they might dream of their lovers. Lupton, in his Notable Things (1586), says: "It is certainly and constantly affirmed that on Midsummer Eve there is found, under the root of mugwort, a coal which saves or keeps them safe from the plague, carbuncle, lightning, the quartan ague, and from burning, that bear the same about them." He also says it is reported that the same remarkable "coal" is found at the same time of the year under the root of plantain; and he adds that he knows this "to be of truth," for he has found it there himself!