I think I've had mine for three years. Mine increases, but slowly here. I started with two fans, and now I have five. It has never reached its registered height, with scapes in my garden ranging from 24-26 inches tall. It has rebloomed well in two out of three years, and it does set pods. I will have a couple of seedlings from it which have not yet bloomed. The flowers open well in both cool temps and hot temps. The blooms are always beautiful!