Mine has started to flower but very low key given the number of seeds sown. Mainly purple too.
Going to try and do it properly over a larger patch with one of those seed mats next year. Are you going to just leave yours and see what regrows next year?
These are all annuals so I'm not sure what I'm going to do. Maybe some will self seed and i'll put some perennial wildflower seeds later in the year? It's all a new to me
Also the wildflower patch has gone bonkers and is starting to flower.