Beautiful flowers, what are they?

So I have been at my house for 3 summers. This year these 3 plants shooted up. At first I thought they were those big weed things that show up on my patio if I haven't got rid of them, but then my neighbour pointed out the flower buds last week, and now they are all showing these amazing flowers.
I didn't plant them, could they have been dormant for a few years? Could birds have dropped these seeds? Anyone know what they are because I would love to grow more of them.

 

They look like poppies.
I'm sure someone can tell you which kind.

 

Double form of the Opium poppy.(Papaver somniferum).. An annual, so yes the seeds could have been bird dropped.

 

Thanks for the info. I didn't realise poppies had so much variety

 

Poppies have evolved to take advantage of ground disturbance, they can lay dormant for 50 odd years

 

Isn't that why they grew on the fields after WW1?

 

It is.

What happened to the member that wanted to cover Britain with Poppies for this year?

Was it @Doug Harding ?

 

Poppy seed is usually dispersed by wind so there may be more nearby but they can be dormant for years. Some have appeared in my garden for the first time this year, I suspect the weather has been just right for them as they're also prolific in the hedgerows here at the moment.

 

Don't forget that the hedgerow poppy is likely to be Papaver rhoeas (aka Flanders poppy) whereas the one shown is Papaver somniferum which is a native of the Middle East rather than Western Europe.

 

Let the seed heads dry off and then pick them carefully and store them in a cool dry place. You can then sprinkle the seeds where you would like them next year! If you are lucky the bees will have cross pollinated them with a different poppy and you will get a variation of different forms.