Thistle with a makeover

It's Thursday, and Thursday means I have to complete the week's shopping list for an online delivery on Friday.  

I book two week's ahead and to hold the slot add two packs of Kronenberg (which I don't need) and three lots of milk, which takes me over the minimum order.  One of these days I am going to forget and Friday's delivery will be lager and milk.

I have spent a couple of hours over the back bagging up thistle seedheads to try and reduce the amount that will grow next year.  I'm pretty sure I'm wasting my time because I've not made much of a difference.

This is one of the seedheads heavily faffed.