Wreath is a planet in the Golden Branch in Autonomous Diaspora territory. During the Golden War, the Divines Love and Compassion were stationed on Wreath.
During the Holiday Special, the players' fleet had to decide whether to take supplies from this planet on their way to Counterweight. They chose not to, a decision that resulted in military personnel going on strike as led by Ibex. The planet wasn't pillaged, though, which is presumably a good thing.
On the early map of the Golden Branch, the notable traits of the planet listed are "oceanic" and "salt mining world", with a population of tens of thousands.