Is this plant invasive and how do I get rid of it?

[TuxedoCatsRule]

Does anyone know what this is and how do I deal with it please? I’ve tried Google image search, which thinks it’s allium triquetrum. Apparently that’s classed as invasive.

I’ve only moved in recently so haven’t seen it flower yet. It’s definitely spread in the last few weeks though! I’m renting so whilst I want the garden to look nice I’m not for masses of labour or expense! It’s currently covering some wonky paving in a bit of the garden I’m unlikely to sit in but I’m concerned it’s going to take over the lawn if I don’t do something soon.

There's another thread on this - also called three cornered leek/garlic/allium.

It's just a nuisance more than anything else, but you can pull it up quite easily, especially if you have a weeding tool. They have a white bulb at the bottom and you want to make sure that comes up too. It will take a while to get rid of it completely, but you can certainly stop it getting any worse.

Yes, three cornered leek.

You can eat them. Not bad in a stir fry.

Thank you, just found that thread and will give the no dig method a go - have plenty of cardboard what with having just moved in!