Pampas grass is the name given to species of the genus Cortaderia, most commonly Cortaderia Selloana which is available with white or pink plumes on strong stalks. Different varieties flower at different times and this example is a late autumn flowering variety that will look fine through early winter. Spring varieties may be slightly lower growing
Pampas grass will not tolerate wet boggy conditions but otherwise is a hardy easy to grow plant. Poor soil in a sunny position will encourage plumes. It takes some time for a small plant to produce the plumes but the clump then bulks up quite well. As you can see it should not be planted too close to the house or windows as it grows over 6 feet tall and can block out the light. The roots are not invasive or dangerous to good foundations. Even Dwarf Pampas Grass Pumila variety still grows to about 4 feet.
The dead leaves can be hard to remove because they have sharp edges prone to cut the unwary. Use strong secateurs and gloves or burn the leaves in January/February.