got this from bbc website
For a first-time vegetable grower, there isn't an easier place to start than with rhubarb. It will flourish without too much attention and will provide you with tasty stalks at a time when little else is ready for harvest in the garden. Cultivated for its delicious, pink stems, rhubarb is a very hardy, frost-resistant vegetable - in fact it requires a period of frost in the winter in order to produce the best stalks. just to clear one or two things up