Perhaps due to its importance as the breadbasket of the Empire, Salliche cannot be found on any standard galactic maps or hyperspace trade routes. Presumably, somebody knows how to get there.
Salliche is peopled primarily by humans, and (oddly) a small population of wayward Gungan immigrants. Practically nobody of any importance hails from Salliche, unless farmers, tractor mechanics, and grain barons are important in your book.
The planetary government is located in the city of Netassa, where the long-established, aristocratic Harbright family has long influenced affairs.
This planet is also the site of the famous Vaults of Narner, a burial ground that has been repeatedly excavated (some would say "looted") by treasure hunters.