Does pampas grass have seeds that can spread to green lawn areas?
Does Pampas Grass Have Seeds That Spread
Certified GKH Gardening Expert
In some areas, this plant is known to be invasive as it does self-seed. That said, in lawn areas that are continually mown and kept up, this is rarely an issue, though this plant does require at least 10 feet by 10 feet of space to spread into at maturity. If the size and spread of pampas grass is a concern, however, there is a miniature variety available called C. selloana 'Pumila.' Here is more information on growing pampas grass: https://www.gardeningknowhow.com/ornamental/foliage/pampas-grass/growing-pampas-grass.htm