I've grown this since 2006: At least that's the date on my earliest picture. It is a good plant performing well even with our quirky 5a/b winters! It's probably just me, but winters seem more like Antarctica here in recent years. These plants come through without complaining! I do notice a color variation depending on natural lighting; cloudy, sunny or light overcast. Here are a couple examples: 1st one 2006, 2nd one, 2011.