[Sive]

nozebleed, the root isn't the problem, you just need to get the little wretches out of the ground before they flower and set seed..... and just as kindredspirit says in some places they seem to need to grow quite large and tall before they flower, in other places it's as if they are still in nappies and producing babies themselves..... it's weird.
As you can see, hairy bittercress definitely affects your sanity !!