Purple Fountain Grass Revisited

I have really been enjoying the life cycle of this purple fountain grass. This is the first time I have grown it and I will certainly look for more next year. The grass is a lovely purple color and when the plumes first appear, they, too are purple. As they mature, they turn a brown color and all these little seeds appear. Has anyone saved the seeds and successfully grown the grass the next year?

Here is a comparison of the new & the old plumes.