How to control Raspberry spread?
My Heritage Raspberry bush does quite well. To keep it in bounds I have been digging out the violators and giving them away. Of course this makes a mess of the grass and I have set up everyone who wants them. There is the commonly seen plastic edging with the round top, I only find that in 4" depth. Is that enough for Raspberry runners? I can get something from the sheet metal shop if deeper is needed. Any issue with the galvanizing in in the soil regards to organic or etc ?