OLIVE - ‘Olea Europea’ 10 Olive seeds. The Olive Tree is a great species for bonsai. This is a half hardy evergreen tree with beautiful gnarly trunk & silvery green leaves. The Olive tree can be kept either indoors or outdoors but should be brought inside if there is risk of frost. The Olive Tree will grow into a beautiful tree which can be shaped to form a lovely miniature tree. The Olive Tree is native to southern Europe but grow well in a range of climates. The art of bonsai is associated with the practice of ‘Zen’. The cultivation of bonsai & patience required to develop the trees was considered by Japanese Buddhist Monks as a form of meditation. Olive Tree Bonsai Seeds