Neal, I am sorry, I have no good info for you. I always end up thinning every kind of daisy I have grown. I've given so many away of various cultivars that now I've loaded all my plant takers up and I just have to throw them out. Mine are grown in well amended soil and for the most part well drained. My best (and least favorite) stand is in clay soil. I don't know what cultivar that stand is. They are plain old daisy that grow almost three feet tall. If you were closer I could load you up with several varieties and keep you in daisies even if they kept dying out on you