Naranjo translates to "orange tree." While "flor" (flower) is common, specifying the naranjo makes this a unique and vivid image.
In the song, Juan Luis Guerra sings, "Eres la flor del naranjo donde yo encuentro la miel" (You are the flower of the orange tree where I find the honey). This beautiful metaphor compares his beloved to the fragrant blossom of an orange tree, suggesting she is the source of sweetness and joy in his life, much like honey from a flower.
Juan Luis Guerra's "Para Que Sepas" is a sweet and direct love song where he wants the object of his affection to know, without a doubt, how much he thinks about her. He tells her, "Para que sepas tu, Yo vivo pensando en ti" [So that you know, I live thinking of you]. His heart even "hace pum si te ve" [goes 'pum' if it sees you]! It's clear he's completely smitten and can't stop dreaming of ways to please her, asking, "Vivo soñando, buscando Como agradarte mujer" [I live dreaming, looking for how to please you, woman].
He uses some fun comparisons to show just how important she is to him. While New York has the Brooklyn Bridge and Paris has the Arc de Triomphe, he declares, "Yo te tengo a ti" [I have you]. She's his most treasured possession, like "la flor del naranjo Donde yo encuentro la miel" [the orange blossom where I find honey]. He even confesses that he's reserved his time for her, saying, "reserve la mañana En santiago y la noche en Madrid" [I reserved the morning in Santiago and the night in Madrid]. It's a charming and heartfelt declaration of love, letting her know she's always on his mind.