Throughout Mary Oliver’s “The Black Walnut Tree,” Oliver employs figurative language and literary techniques such as diction and imagery to establish the tree’s role in the family as a symbol of both the adversities and the rewards that arise from their endeavor to preserve their family history.
In the beginning of the poem, the narrator and her mother discuss selling the tree to pay off the mortgage, noting that the “dark boughs” might one day “[smash] the house” in a storm anyway (Oliver 7-8). The word choice that Oliver implements in these lines suggest that the effort to maintain the upkeep of the tree is becoming too heavy a task and that it might be easier to be rid of it, much in the way that many households may feel that family traditions, customs, or ancestral stories are cumbersome, outdated, and unnecessary to uphold or pass down. Likewise, this sentiment is expressed again in the poem when the mother mentions that “the leaves [of the tree] are getting heavier…and the fruit harder to gather away” (Oliver 13-15). The diction Oliver employs here reveals a lot about the family’s attitude towards the tree, indicating that they view it as a burden to bear.
However, as much as diction is used to convey how the family regards the tree as a difficult responsibility to manage, the vivid imagery found throughout the piece also illustrates the significance of the tree to the family’s history. Although the narrator’s comment that there are “roots in the cellar drains” may appear as simply another reason why the tree is not worth the hassle, the image that these words evoke imply that the tree’s very existence is deeply entwined with the family’s past and even its daily, basic functioning (Oliver 11). Furthermore, when the narrator describes her dream about her “fathers out of Bohemia” planting trees and filling the land “with leaves and vines and orchards,” the lush images conjured in the reader’s mind emphasize the idea that the black walnut tree is the foundation on which the narrator’s entire family was built (Oliver 26). The livelihood of her forefathers depended on these trees, and thus, it is to these trees that the family owes its lineage. To cut down the walnut tree, then, is to erase their own past.
In addition to diction and imagery, Oliver also employs figurative language in order to convey the idea that, despite being a burden, the tree offers gifts that are truly invaluable, just as preserving one’s family history is a weighty yet worthwhile endeavor. For instance, while the narrator and her mother list several reasons to cut and sell the tree, the narrator also acknowledges that “something brighter than money moves in [their] blood,” compelling them not to cut down the tree, but to plant more (Oliver 16-17). By using figurative language to express the feeling that overtake the two as “brighter than money,” and something which “moves in [their] blood,” it is clear to the reader that the tree possesses more value to the family than riches and that its relationship to the family is not a shallow one (Oliver 16-17). This idea is reinforced in the last lines of the poem, when the tree is personified as “swing[ing] through another year,” for describing the tree performing a human-like action implies that the tree is just as much a living, breathing member of the family as anyone else (Oliver 32).