There is nothing more annoying than a hyacinth that has fallen over in the pot.
I have used all kinds of supports from knitting needles to privet twigs, but I suppose small garden canes – you know the green ones, are perfect. It is upsetting when people feel it necessary to fold over the leaves of anything grown from a bulb with a rubber band.
Simply deadhead the plant and let it grow! That way you will get a stronger bulb next year.
I tend to grow my hyacinths in pots so that when they have finished flowering I can move them to a part of the garden where they can grow undisturbed. This means the bulbs have to be re-potted and divided often.