Posted: 30/07/2013 at 11:03
Hi Jane C. Funny you should mention those two plants. Firstly that Valerian - like yourself I had terrible problems with it when I first started gardening way back and was on the scrounge everywhere for cast off/outs to fill spaces etc. A great bundle of it came my way and I duly planted it all round the garden - where didn't it get to and grow - and try and dislodge it - stems of iron. Seemed to have this particular liking for getting into walls and at the bottom of them next paving etc - goodness knows what it ever found to live on. Just as a matter of interest and totally unconnected it was said to be Winston Churchills favourite flower. Lemon Balm likewise which again did the same thing as you mention - everywhere and dreadful job to try and control - I did however have a plant of a variegated one and this I found did not seed/get about so badly- did love to crush and smell those leaves mind.