Can hyacinth bulbs be started from seeds from the blooms ?

no not successfuly --- and because they are a bulb/ corm --- that's all you will need to get more hyacinths --- just split them with a sharp knife with plenty of root left on the bulb .good luck .Can hyacinth bulbs be started from seeds from the blooms ?
Yes, they can. In fact, all bulbs come from seeds. But it takes years to make them the size that is plantable and that you see in the shops and in catalogues.