Achillea existed as a planet situated inside the Cadriaan Province region of the Tapani sector. Functioning as a trade world along the Shapani Bypass hyperspace route, it stood as one of the most important planets under the control of House Cadriaan.
Achillea was initially discovered during the period known as the Twelve Kingdoms Era. After a few centuries, during the Federal Era, it became part of the Galactic Republic. During the Clone Wars, the Galactic Senate included Senator Rodd of Fondor as the sector's representative.
The planetary surface was characterized by warm, shallow seas, along with three substantial landmasses. Achillea's urban areas were primarily concentrated on the northernmost of these continents. The capital city, known as Cadriell, was built on a peninsula along the western coastline, and was known for the beautiful cliffs overlooking the ocean. The smaller, southern continent of Achillea was dedicated to large spacia tree farms. These farms produced spacia wood which was used to manufacture furniture. This furniture, produced on Achillea, was highly sought after across the galaxy.