If you are new to growing herbs as bonsai, you may want to start with the rosemary specimens. The rosemary is an aromatic evergreen tree, or shrub that derives from Southern European regions. The shrugs come from the family of mint. Rosemary is grown for the scents emerging from its gray to green needle-shaped leaves. Rosemary is also used as flavoring to enhance meals, or fragrances to make perfume. Rosemary has a wood shrub, which is easier to maintain.