Hi! Does anyone know anything about fountain grass being really invasive? I just bought 3 plants for a raised garden and the nursery didn't say anything about it.
Thanks very much.
It depends on the cultivar. Some are very vigorous self-seeders. Pennisetum alopecuroides 'Moudry' is an example.
Here is a little proof.
Here is a link that might be useful: Fountain Grass invades National Park