In the past, there were no trees here, either inside or outside the walls. Or if there were, they would have been far fewer than there are today.
When the castle was a fortress waiting to be conquered, there was no point in helping the enemy by providing him with something that he could climb or even burn and consequently facilitate his attack.
The castle garden appeared in the 1950s and is one of the first examples of landscape architecture in Portugal. The idea came to its creator, the architect Gonçalo Ribeiro Teles, when the castle definitively gave up its military role. In addition to framing the monument, he also intended it to provide visitors with high-quality and comfortable leisure areas.