Ask-a-Dave's-Gardener: blue dune grass spreading more than I thought, 1 by fatima526

fatima526 wrote:
I planted 2 blue dune grasses as part of the project described at this link

http://davesgarden.com/community/forums/t/1371795/

That was fall 2014 ... now at spring 2016, the blue dune seems to be sprouting in nearby areas where I do not want (in between stepping stones on the lawn, see pic, where I planted the grass is on the left, and now you can see new growth coming up in the lawn at lower left, and between the stones to the right).

1) Does anyone know if the blue dune growth in the lawn is from the grass spreading underground, or does it spread by dropping seeds, or some other way?

I knew the blue dune would grow high and wide, but I assumed that was just seasonal growth that would originate only from where I dropped it in the ground and could be deadheaded each year. But if it is going to spread into the lawn like in the picture, then blue dune was the wrong choice for the location, and will probably dig them out, before it spreads into the lawn even more.

Thanks for any insight you can provide!