pull them up NOW . I had these last year, They go everywhere there called stinking bishop or something like that

thank u.ithought there maybe aweed killer

Sorry Willis I told you wrong. It's called stinking willy. I asked a question last year "Ive just found this plant growing in my veg plot" and got a whole lot of replies you might want to check it out. I have a picture of it in flower. Hope this helps

Did up the bulbs if you can or they will grow again.

they could be the wild garlic or a cultivated allium like mollis, which is a yellow flower, but can be invasive. There are lots of different species. but if you want rid then dig up all the bulbils or they will come back. You can use a weedkiller like roundup if you need to.

And whatever you do, make sure it doesn't go to seed, else you'll have twice as many plants to deal with

I thought I got rid of all mine last year just seen a more drat!!