Sorry but the water line blue and white flowery tiles look old fashioned and if you're going for that kind of sandstone on the top it won't go with the terracotta tiles you have already Do like the pool and tiles that Hayda Natural Stone have posted Very nice!

Your problem is the heat generated by the fence and the pool and path. Anything you plant will have to be super tough. All plants loose and replace their leaves. Evergreen drop some leaves all the time and deciduous once a year. Adding pebbles will only reflect more heat and is becoming a dated look along with the cordylines. I'm not sure of your climate but a bullet proof evergreen plant that will cover the fence and take sun, drought and frost is the nandina domestica. Upright growing but no pruning required. There are new varieties of this plant but this one is just the right height to cover the fence. If you get cold weather in winter you will also get autumn colour. Will sucker from the bottom to fill the gap but not a garden thug. Has berries but because of the upright habit should fall into the garden bed. Sometimes called sacred bamboo but not a bamboo.

Bumping this to active.

Hi Louise, We are a company based in VIC that specialise in artificial vertical gardens and hedging. Have you considered that to be a possibility? We ship all across Australia and our product is very high quality and UV treated to ensure longevity! Below are some photos of jobs we have done poolside to give you an idea of what it may look like. If this is something you may be interested in, get in touch with us!