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But surely the point of veg gardeners growing comfrey is that it is an excellent source of mineral rich greens for the compost heap, and is continually cut down to the ground. So it needs to be robust to stand that sort of abuse, and should never have a chance to spread, since it should never have the chance to grow flowers and produce seeds.
Unlike the unwise people who gave us Himalayan balsam, invasive bamboos, and that other thug, Japanese knotweed, purely as plants for the pleasure garden.
Given the right conditions, many plants are invasive. I'm thinking of alchemilla, Welsh poppies, everlasting sweet peas, lily of the valley, oxalis, and I agree with Vixilix about ivy - hate the stuff!
A lot of our native wildflowers are considered invasive in the U.S.
If something spreads too much in your patch, as a gardener, you deal with it - prune it, chop it, dig it out. And learn from the experience. Nothing like empirical learning, it sticks with you so much better, pretty much like invasive plants
Unlike the unwise people who gave us Himalayan balsam, invasive bamboos, and that other thug, Japanese knotweed, purely as plants for the pleasure garden.
Given the right conditions, many plants are invasive. I'm thinking of alchemilla, Welsh poppies, everlasting sweet peas, lily of the valley, oxalis, and I agree with Vixilix about ivy - hate the stuff!
A lot of our native wildflowers are considered invasive in the U.S.
If something spreads too much in your patch, as a gardener, you deal with it - prune it, chop it, dig it out. And learn from the experience. Nothing like empirical learning, it sticks with you so much better, pretty much like invasive plants
...but I digress, it's not something you'd intentionally plant in your allotment ....
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