Where to find Prairie Dropseed?

I want to get more native plants, but am having a hard time finding where to buy them. Do you know of any nurseries in the Kansas City area that sell Prairie Dropseed plants? I don't want the seeds because they take so long to mature

Heritage River Birch question

Maybe you can give some advice, I have 2 Heritage River Birch trees that I planted 12 years ago, they are around 45 feet tall. The trees were doing great, with no signs of any problems