Pampas Grass

Question

1. My pampas grass had a large limb fall on it from a storm. Do you think I need to give it time to see if it will bounce back before I cut it back.
2. I have 3 plants that are maybe 8-10 years old. They grow tall with plumes but are now hollow in the middle. Is that usual?

Answer 1

Just prune back the damaged parts of the plant.

https://www.gardeningknowhow.com/ornamental/foliage/pampas-grass/pruning-pampas-grass.htm