Rue herb does well in a variety of soil but does best in well drained soil. In fact, it will do well in the rocky, dry soil that many other plants have a difficult time surviving. It needs full sun to grow well. It is drought tolerant and rarely, if ever needs to be watered. Rue plants have bluish-green, fernlike leaves that are bushy and compact. The flowers on the rue herb are yellow with petals that are frilly on the edges and the centre of the flower is normally green. Rue normally grows to a height of 1 m. tall.