I have these all along my border, don't know the correct name for them, but they are a minature pink.

thanks but how do I go about separating them and when

A type of Dianthus deltoides? these are well suited to a rock garden of garden border like well drained poor soil in full sun. For noe I would give it a good trim and water and in the autumn divide and plant in the garden

thank you drc726 I was told they were upright geraniums

I remember your question about upright geraniums! A case of mistaken identity!

I think they are pot bound and once divided and with the right amount of neglect they will look good in a patio border, my Dianthus delts (pinks) only did well once I put them in poor soil and left them alone.