Quermia was a terrestrial planet located in the Outer Rim Territories. It was the namesake of the Quermian species, whose ancestors were settled on Quermia by Arkanian scientists. Quermia was located in Separatist space during the Clone Wars, isolating it from the Galactic Republic. Although the extensive blockade of Quermia was lifted after the Confederacy of Independent Systems collapsed, the planet fell under Imperial rule shortly thereafter.
Quermia was a planet located in the Outer Rim Territories, in grid square S-5 on the Standard Galactic Grid. A terrestrial world, Quermia's surface featured green landmasses and expanses of ocean. It sat close to the end of the Perlemian Trade Route hyperlane, which extended north-east from the Core Worlds planet Coruscant and connected it to the astronomical object Makem Te. Quermia also lay at an intersection between the Perlemian Trade Oute and the Overic Griplink hyperspace route, which linked the world to the planet Mon Cala. A separate hyperspace route connected Quermia to the planet Toola. Quermia was located near the planet Troiken, homeworld of the Xexto species.
Long before the Imperial Era, Arkanian scientists settled Quermia with a genetic offshoot of the Xexto species. Named for their homeworld, these beings were the ancestors of the Quermian species. While the origins of the Quermian species were unknown to the larger galactic community, Quermians and Xexto shared so many of the same genetic markers that xenobiologists believed them to share at least a common ancestor. How this came to be was one of the galaxy's greatest mysteries.
A member of the Galactic Republic, Quermia was located in Separatist space during the Clone Wars, a conflict between the Republic and the Confederacy of Independent Systems that began in the year 22 BBY. Isolated, the planet suffered heavily under an extensive Separatist blockade. With the fall of the Confederacy at the end of the war in 19 BBY, the blockade over Quermia was lifted. However, the planet fell under the rule of the Galactic Empire, which the Quermians did not usually consider to be a substantial improvement over Separatist control. In the same year, Quermia was advertised as a destination worth visiting along the Perlemian Trade Route. One poster found on the moon Pantora suggested travelers take a flight to the planet aboard Luxury 3000 space yachts.
By 3 ABY, a holy relic of the Quermian people had been taken from Quermia and put on display in the Imperial Museum on Coruscant, the capital of the Galactic Empire. Quermia was mentioned as the Quermian homeworld in "Species From A to Z," a survival compendium sent out by the human Carson Teva during the New Republic Era. Quermia was later mentioned in an artist's journal, which was restored, expanded, and displayed at the Graf Archive at some point after 34 ABY. The Quermian homeworld was also one of many planets depicted in galactic maps thought to be drawn by the Ithorian artist Gammit Chond. Unearthed from the Graf Archive's Shadow Stacks, the ancient maps were refurbished by Director Amel Fortoon many years after the First Order-Resistance War.
Quermia was the homeworld of the garden Quermian species, who spoke a language of the same name. After the Arkanians departed Quermia, the Quermians developed a society centered on a largely communal lifestyle, as well as the contemplation of philosophy. The ease at which members of the species were able to communicate and share their feelings and concerns was a contributing factor in how Quermians were able to maintain the long-lasting peace of their society. While Quermia's history was not entirely peaceful, strife usually came from outside influence instead of internal struggles.
Yarael Poof, a Quermian Jedi Master who served on the Jedi High Council during the final years of the Galactic Republic, hailed from Quermia, as did the Quermian Rebel Alliance Pathfinder Needle. The latter believed that the Quermian holy relic on display in the Imperial Museum was stolen and should be returned to Quermia.
Quermia was first mentioned in the current Star Wars canon in the 2015 reference book Ultimate Star Wars and first visually depicted in the 2016 reference book Star Wars: Galactic Atlas, illustrated by Tim McDonagh. In the Star Wars Legends continuity, Quermia was first mentioned in the 1999 book Star Wars Episode I Who's Who: A Pocket Guide to the Characters of The Phantom Menace, written by Ryder Windham.