Primordial

The Primordials were a humanoid, herbivorous species native to Cerberi Prime. They were among the oldest civilizations in the Sagittarius arm of the Milky Way and were known by the Ecumene to be peaceful. They're commonly referred to as "The Gardeners" for how their culture heavily revolves around nature, however they are incredibly deadly when need be and rival the Omnikins in combat.