Thank you all for your comments.
Armando, they are, of course, both part of the statue and so is the ladder. Represents the way the pots were watered down before self-irrigation was invented. Usually a two people, one young one old, will take care of the plants. The patio route in Córdoba in May to see them is spectacular.
That tree image is wild. Strong
This an image of one them still dry in the summer. Taken Saturday at midday.