Are you troubled by weeds?

[Roma]

Where do I start?  Crocus pulchellus, Tulipa sprengeri, Lilium martagon are all enthusiastic seeders and impossible to remove where they are not wanted.  Corydalis malkensis seeds around but is not above ground long enough to be a nuisance.  I have Eranthis hyemalis and Scilla bithynica at one end of the garden.  If they spread further they will be a nuisance, especially the Scilla.  Scilla bifolia is in a few places but so far is not a pest.   The worst real weed I have is sorrel. 

[Maggi Young]

But Stephen Barstow would tell you you could be cropping the sorrel for  food, Roma!

[johnralphcarpenter]

Don't get me started on Crocosmia!

[ian mcdonald]

Ralph, crocosmia/montbretia are sometimes seen on sea cliffs as a result of being thrown out of seaside gardens. It is dominant in some areas.

[johnralphcarpenter]

Yes, Cornwall is full of it.

[Lesley Cox]

But is the "weed" sorrel the eating sorrel? I have what I bought at a market as French sorrel and use that raw in salads but the weedy one is much smaller in stature and spreads as rapidly as a dropped jug of milk whereas the French one remains in relatively neat tufts and can be dug out if necessary. The weedy one has just recently come to my garden in a small plant of something else, from a sales table. It had been pulled from the surface and wasn't visible on purchase but within a week was already spreading out for pastures (and crevices and cushions) new. I've had to lift several plants, spray the patch and carefully rescue the other plants and tease out their roots to eliminate the sorrel. But it is still there.