There are a few that come to mind immediately. These can be noticed from a distance and draw your attention to them. Visitors say the same about them. There is just something that pulls at you when you first see them.
Heavenly Tiger Tails. Individual blooms are nice but as a clump it has the wow factor.
Alien DNA is another one that calls to you from a distance.
Desert Moon, short blooming time but wow when it is blooming
