Cole Swensen’s book Ours is a sequence of poems — or is perhaps best described as a poetic project. André Le Nôtre (1613-1700) was the principal gardener of King Louis XIV; he designed and led the construction of the park of the Palace of Versailles. The poems in Swensen’s book indicate a range of interests in Le Nôtre’s work and beyond, but his Gardens of the Château de Vaux-le-Vicomte are of special interest, and they are the topic of the poem we chose to discuss, “If a Garden of Numbers.” The poem, and our talk about it, raised a number of compelling questions. Are historical research and the lyric compatible?