Southern Magic is in principal based on information put into physical form, and is extremely similar to Mage Magic in operation. The principal difference between the two types of magic is the Mage Magic projects it's effects externally from the object the spell is inscribed from, where Southern Magic operates specifically on the item that the spell is inscribed on.
Typically Southern Magic is used to create various types of Golems, otherwise bringing animation to inanimate objects and altering objects properties, such as plants.
one weakness to such spells is the range: Such spells must be on contact with the item they are to enchant. As such, for example it is possible to break the spell's created golem by braking the spell inscription itself, physically removing active parts of the spells inscription.