This paper is intended to examine the change of characteristics of major characters’ selves in D.H. Lawrence’s novels while they are in the forest or trees. The forest or the tree is a source of creativity, wisdom, imagination, and inspiration in Lawrence’s novels. A man and a woman in the novel will be ease, peaceful, comfortable, vital, and rich in his or her feeling and emotion when he or she is present in trees and the forest. However trees and forest can paly a negative, undesirable, destructive force and effect to people as well. So they have double, and ambivalent values. Lawrence keeps abundant, keen senses, full recognition, and enough knowledges about effects and influences of trees and forest. The writer’s description of trees and forest in his novels must be given notice and attention for understanding of Lawrence’s novels. The paper will deal with Lawrence’s (short) novels such as “The Shadow in the Rose Garden,” “The Shades of Spring,” “Sun,” Sons and Lovers, The Rainbow, Women in Love, Lady Chatterley’s Lover, Kangaroo, The Boy in the Bush. For the first seven novels, the creative, positive effects of the forest are touched, but for the last two novels, negative, destructive effects are touched in terms of the so-called Australian bush dark and strange, and mysterious. In addition, this paper will touch on Lawrence’s emphasis of place and space. Lawrence’s talk and discussion of ‘the spirit of place’ are critical because it exercises an important role and influence in his literature. ‘The spirit of place’ is the title of the foreword of D.H. Lawrence’s Studies in Classic American Literature. It is a very important topic in Lawrence’s literary discussion. His talk about the old Indian wisdom of the forest, and about German Hercynian Wood in connection with old Roman military forces’ invasion into Germany appears in Fantasia of the Unconscious. Place’s soul or spirit in the forest and trees which Lawrence calls ‘the spirit of place’ is examined in the paper for the more exact, right understanding of his novels.