Casuarina needles as mulch
I want to use casuarina needles, of which I have a lot, as mulch. I have heard, however, that unlike pine needles, they have an inhibiting action on plants, which is why nothing grows under them. Is this true, and would they make a good mulch? Regards, Bill Ure
Certified GKH Gardening Expert
All of my research points to them being a decent mulch for deep rooted plants, as they will prevent young weeds from starting. Just have care, and don't apply this to baby plants.