Habiscus shrub - in full bloom, look under the shrub. definitely not a plant for close proximity to the pool but maybe with ground cover? will that fall into the ground cover and look messy? or disappear and look beautiful?
Use Color Effectively We love this trick: Place bold, bright colors in front of where you'll view them. Because they catch your attention first, the rest of the landscape beyond will seem to recede, helping it to feel larger.