Hyacinth bulbs are rather small..I would wait till the bloom stalk is done and over with, cut it off and move the bulb to soil, if it is still too cold for you, put it in container. Then allow the leaves to continue to grow so it will return the energy back to the bulb for next season again. Wait till the leaves naturally dies off before cutting it off. Pretty much, after its bloom time and leaf die off, it will just sleep again. May or may not return next season, just depends how much energy it has returned back to the bulb. So sometimes people just toss them out and buy new ones.
