I think these pretty little blooms are forget-me-nots. They are from a packet of seeds my SIL Fay sent me as a part of my birthday present back in February. I sowed them in seed trays and seem to have lost the empty packet.
They are in pots now, but I might have a go at making a permanent space for them. I like them nearby where I can see their tiny cheery faces. And can keep them well watered.