My god-daughter bought me two hyacinth bulbs at christmas, with hyacinth vases, for growing in water. I followed the instructions in the boxes (to leave them in darkness for six weeks, which was mid-Feb, and to then bring them out when the roots had started to grow). The problem is that they haven't done very much since! There's only about three or four roots on each bulb, only about 1cm long, with the stem of the shoots only about 3cm high. The shoots look healthy but are growing so slowly (if at all) it's ridiculous. What can I do to encourage them along? Is the best thing at this stage to repot them into some potting compost and get rid of the water altogether?
Any advice appreciated, thanks!