Watering Hyacinths
by Keri
(Vancouver, BC Canada)
Doug says: water when the soil is dry to the touch, if the soil is damp to the touch, do not water. That's it for watering. Keep them as cool as possible in full sunlight to extend the bloom time.
Growing them another year is going to be very difficult for you in an apartment. They will do best planted outside in the ground (you can do this after frost has gone). For full instructions for forcing bulbs yourself, see the indoor bulb page.
My .02 is that this is .75 worth of bulbs and I think you should enjoy their blooms and fragrance yourself. Then find a friend with a garden and give them away to grow. Next fall, you can start your own if you're adventurous or can purchase started bulbs again next spring.