Innovative reply, Mike! Going back to plants, one of the defence mechanisms of mediterranean plants is their scratchiness –
Teucrium fruticans and pomegranate fall into that category – and I would agree with Amateur that soft-leafed plants are better for round a pool. Given that the plants need to look attractive in the summer when the pool is in use I suggest:
Epilobium canum – lovely soft grey foliage with orange flowers right now and about 90 cm tall,
Gaura lindheimeri – see photo of mass planting
here.
Anisodontea malvastroides and
Pavonia hastata both good for growing up through other plants and flower all summer,
Agapanthus, large and dwarf, blue and white. If you have a paved corner protected from wind and sun then pots with
Jasminum sambac growing up a support will scent the air and Elephant Ears (
Alocasia) give an exotic look without exotic problems. None of these plants would cause much trouble with rubbish.