Wild Horses--beautiful and such a dramatic bloom--couldn't resist buying. Five years ago we planted it in what we considered a prime spot--alas, WH didn't know it was supposed to do well there. It sat for three years doing virtually nothing and I was going to toss it, but gave it a reprieve and a new home. Now it is going into year three in its new home and doing so well. It gets much more sun here, the sun hits it fairly early in the morning. All we can surmise is that was the problem in the old place where the sun didn't shine on it until noon. It has never reached the listed height, but the flowers are above the foliage. Maybe some day it will make that 37".