Looks like an Aloe to me so surprised it's survive outside.
last months GW mag had an offer on lavender that is still open. 48 plants for just £5.60 postage
It's a teasel, wild flower that self seeds widely about.
Could it be a Silene?
Could someone please add me, I'm in Tadley Hampshire. Thanks
The sap can also iritate skin if it comes into contact. I would use a weedkiller to get rid, probably take a few years. Don't let any of it flower to avoid further seeds. Birds probably spread it after eating the berries
I think it's an Arum, probably the native variety. Does it produce spikes of flowers then berries?
They are not the same. They are a natural predator of slugs so you are not introducing any chemicals
The leaves aren't right for star of bethlehem. I have tulips that look like this but unfortunately I didn't record the name. There is a range of star shaped tulips which have these very long thin leaves.
I have one of these that has spread 30 feet in one direction with the roots being at least 3 feet down. Take great care