What have you grown and wished you had never

Mine is horseradish, love it with beef, new garden first plant in ... had no idea about the invasive root system and how it wanders,  now have little plants popping up in leek bed and working it's way to the potato beds, must dig it out and restrain it.

first think that came to mind before I'd clicked into the post was bloomin' Horseradish!!


Had mine growing in a bottomless barrel in the back yard which, on trying to move, discovered the roots have anchored it to the ground through gaps in the concrete/steps

Took ages to clear out the barrel enough to lift it and chop them off... and now I've a new plants sprouting from the roots and I can't dig them out without excavating the concrete yard! 

going to glyphosate the new plants and hope that gets rid!

I think the poor old horseradish is far too much maligned. I love the stuff and is a year round addition to my food. I don't have a problem with it getting out of hand. The top soil on our well worked plots is no more than 2 feet deep before one hits bedrock, sometimes much less, so keeping invasive plants is not an issue.

I do have a few herbs though that aren't my cup of tea but can't bring myself to pull the plug. French taragon, dill etc, those sort of aniseed type flavour things. They look fine but just not my taste anymore.
Oh, and turnips ... can't think for the life of me why I ever bothered. This year was their swansong. They're now history.