Thanks a lot folks ~ I found Root Out in my garden centre but it was a large 25 quid box and I didn't have the cash on me so will have a look in the other one at the weekend.

There are 6 of these triffids in my garden that the last owner planted and called landscaping! But they are along the back wall and my neighbour has trees on her side of the wall that I think my roots may have entwined with.

I was in the garden yesterday and the flipping things are huge again

I'll have to wait a couple of weeks as my darling OH fell out of a loft and broke both his arms so digging isn't high on his list at the moment

Thanks for the tips folks ~ it'll be his first project when the casts come off! His second one is to double the size of my vegetable patch