Select from options: Continue writing the next sentence.

How to force tulip bulbs in water
Trick the bulbs using a cold environment to make them flower.
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.

Pick from:
[1]. Plant some tulip bulbs in early spring to speed up flowering. Tulips should still be planted in this area after the last spring frost, so make sure they are planted at least a day before the first frost.
[2]. To trick the bulbs you need to place a potted garden hose under the bulb in a tiny pot. Fill the pot about of the way with water and place the bulb (individually) so it is suspended by the hose.
[3]. 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.
[4]. This is why you'll need a cold environment in which to propel them by forcing them. Use a lamp or light bulb and experiment before you choose one.
Answer:
[3].