Quermia is a beautiful, pastoral planet with extensive gardens, well-managed forests, bountiful oceans, and gentle, rolling hills. However, this was not always so. A ship passing by Quermia twenty thousand years ago would have surveyed a vastly different planet – a boggy, fetid, ghostly planet of sedge marshes, toxic plants, and a hostile atmosphere riven with violent electrical storms. Sometime during the nineteenth-millennium BCGT, extensive terraforming work was undertaken on Quermia. History does not mention which civilization undertook this effort, but the results are undeniably beautiful.

Quermia is a planet of two halves. The southern hemisphere is occupied by the planet’s single supercontinent: a temperate, fertile, green land of verdant river valleys, terraced slopes planted with myriad flowering plants, and forests of tall columnar trees. When the blooming season arrives, which is fully half the Quermian year, the hills and gardens burst into flower, blanketing the landscape with all the colours of the rainbow. The delightful scents from these endless fields of blossoms are said to be a significant reason for the mellow mood of the native Quermians. Indeed, the already low rate of crime and violence on the planet declines to almost nothing during the flowering season. Indeed, some studies have shown subtle changes in brain chemistry and activity in test subjects exposed to the floral scents for an extended period of time. The planet’s forests are comprised of a number of related softwood and pine trees, which carpet the forest floor in deep layers of fragrant straw. During the drier season, this can represent a significant fire hazard and the Quermians have developed highly efficient detection and firefighting methods to cope with this.

The planet’s northern hemisphere is taken up by a single contiguous ocean of clear blue water in which a myriad of aquatic species thrive, from tiny phytoplankton to massive marine mammals the size of YT freighters. Close to the shore, massive coral reefs serve as nurseries for baby fish and the larva of other aquatic creatures. These reefs, often in water as shallow as a dozen meters, are even visible from orbit and are some of the largest living structures in the galaxy. The planet's eighteen-hour-long days provide ample time for the coral's photosynthesising components to produce nutrients to fuel the enormous structures.

Historically, Quermia was located near the end of the Perlemian Trade Route, and would have been heavily developed save for the strong conservationist tendencies of the native Quermians. The Quermians themselves are not indigenous to the planet, being brought to the newly terraformed world by the Arkanians during the Indecta Era approximately seventeen millennia BCGT. They were part of the empire of Xim the Despot before its fall. During the early years of the Mandalorian Wars, sometime in the late fortieth-century BCGT, Neo-Crusaders conquered the Quermian system as part of their series of victories over Republic forces in the sector.

Being such an ancient culture, the Quermians have developed a distinctive architecture that blends natural shapes with modern function. Villages and towns blend easily into their natural surroundings and only the largest cities make concessions to wider galactic architectural mores.