Posted: 19/05/2013 at 08:06
Yes, and as soon as the flowers have finished is a good time to splt and repot. Size depends on how big the pot is and how crowded the plants appear to be.
All Primula seeds are best sown fresh, so as soon as you see the seed head beginning to split open then that is the time to take and sow them. Seed sowing compost, cover lightly with grit or whatever you use, keep moist and shady.