[header] How to force tulip bulbs in water [title] Trick the bulbs using a cold environment to make them flower. [step] Bulbs need to be' tricked' into believing they have survived winter in order to start flowering. This means they need to experience a sustained cold environment whilst they are dormant.
[substeps] The ones you buy commercially are likely to have been chilled for you. If you are supplying your own bulbs, you'll need to recreate this cold environment yourself.