Posted: 29/09/2014 at 13:46
I have tried several bamboos over,the years including a large clump that was here before I came . All of them invaded.
Being aware of their invasiveness, I kept an eye on a couple of varieties planted prob 8 years ago. At the end of their second summer I found roots emerging a metre or more from their original site. It was worse in an area of very good, moist soil. I had to remove several perennials to thoroughly trace and remove bamboo roots.
For me, bamboos will never be planted. However, I'm aware of a host of opposite opinions saying how well behaved their bamboos are,,how some varieties are absolutely "safe" and how lovely they are.