By Frankden
United Kingdom 
can lavateria be grown in pots
23 Jul, 2016
Answers
Depends whether you mean the shrubby lavateras (in which case, Jimmy's answer above is applicable) or whether you mean annual forms of Lavatera such as L. trimestris - these can be grown in containers quite easily.
23 Jul, 2016
Have a look at 'Barnsley Baby'; though most others are going to be far too big.
23 Jul, 2016