Where now stands the city of Cerveteri (RM), between the ninth and third century BC took form one of the most important city-states of Etruria: Caere. Today this place is especially noted for the presence of the Etruscan necropolis of Banditaccia, inserted in the UNESCO World Heritage List in 2004. The remains of the ancient fortifications, that represent one of the most interesting and well-preserved examples of an Etruscan defensive wall, are instead less known. Due to a prolonged abandonment and a presence of uncontrolled vegetation, the conservation of this testimony is now compromised by visible signs of deterioration. At the same time, this condition has defined a suggestive archaeological landscape in which architecture and nature coexist in a precarious balance. This contribution tries to deepen the importance of preserving this evocative symbiosis and proposes a possible conservative approach that could manage the relationship between ruins and vegetation.