I filled my hyacinth glasses on 1 December and it’s been fun watching the roots grow and guessing which would bloom first.
They are now in full bloom and fill the air with a heady scent. This one is on my desk.
You can water force a variety of bulbs – using a hyacinth glass enables you to watch its progress but any narrow necked container will work as long as it holds the bulb just above the water. I grew the one above in a little terracotta jug.