By Segovia
Merseyside,
United Kingdom 
http://www.thompson-morgan.com/flowers/flower-seeds/hardy-annual-seeds/poached-eggs-rhs-garden-explorers-childrens-seeds/gwc6444TM
Hi, I bought these to add some ground cover, I was told that can be quite invasive. What do you think ?
1 Mar, 2015
Answers
They are pretty though and you can always hoe out the seedlings if you get too many. Lat time I tried them they didn't even germinate.
2 Mar, 2015
I sowed some 2 yrs ago and I am constantly weeding 90% out this autumn and winter. they are annual so no big roots to cause a problem.
3 Mar, 2015
Previous question
« Hello, could you please identify this plant - it has recently flowered?
They do self seed,if they like your garden. They died out here very quickly.
2 Mar, 2015