I have four decent-sized clumps of pampas grass on my small suburban lot outside Philadelphia. I've been cutting it with a serrated Japanese rice knife and using it as mulch and a good nitrogen source in my
compost pile. When I compost it I lay it out to dry for a while, then I run over it with the lawnmower to shred it up. Otherwise those thick stalks will take forever to break down. I'm surprised I haven't heard more about its use in
permaculture circles.
Some things I'd like to find out:
- It grows really fast and really tall. How often can you cut/harvest it without weakening the plant?
- How deep do the
roots grow?
- How is it as a dynamic nutrient accumulator?