This was one I just had to have once I saw photos of it! I love its bright color!
I bought my first 2 fans in 2009. After 2 years I still had no increase so bought 2 more from another source in 2011. It has been very slow to increase but I did have enough to share a couple of fans this year. I did move one part of mine just slightly and was sure to add compost and fertilized it a few times this year with lawn food. I will see if this helps it do better. If not, I may consider moving it to another bed.
I never see me getting rid of Primal Scream!