|“||There's a blossom. Grows out of the soil when we die. (...) The body has to rot. It can take months, and then these... blossoms bloom.||”|
— Unnamed Leviathan
in The Trap
In 2019, the Archangel Michael provides the same spell to Dean Winchester and Castiel to lock up God himself. Michael warns the two however, that they will need the nectar from a Leviathan Blossom which only grows in Purgatory. With a snap of his fingers, Michael opens a twelve-hour rift to Purgatory so that they can seek out the Leviathan Blossom for the spell. However, Michael refuses to join them in seeking out the flower or to aid them any further.
After being captured by Dean and Castiel, a Leviathan explains that the Leviathan Blossom is something that grows in the soil around the corpse of a Leviathan as they rot. However, it can take months to grow. The Leviathan leads the two to a field of Leviathan corpses where several of the blossoms are growing. However, they are ambushed by Leviathans working for a vengeful Eve who take Castiel and all of the blossoms. Castiel later manages to steal one and escape.
After returning to Earth, Dean and Castiel use the blossom to prepare the spell. However, Sam chooses not to finish the spell after learning of the chaos that will befall the world if God is trapped.