Plant ID please

laarobbins

Hello,wonder if anyone can identify this for me? Mum gave me these, but cannot remember what they are! 

pitter-patter

They look like white platycodon. 

Bijdezee

You can plant them in the garden, they are hardy and will overwinter. They are a perennial, the top growth dues back over winter and regrow in spring. 

laarobbins

Thanks so much for your answers!  👍