Rhubarb needs an open, sunny spot. Rhubarb does need a cold period before it will start to put on new growth in spring, however hard frosts may damage the newly emerging growth, so try not to plant in a frost pocket if you can. Prepare the bed well by removing weeds and digging in composted manure, and plant the crowns at intervals of 75cm - 1m, making sure the dormant buds are just below the surface of the soil. Keep watered well and in spring apply a dressing of composted manure, making sure you avoid covering the crown of the plant. You should also remove any flowering stalks which appear. In the second year, you may start to harvest some of the stems, but restrict yourself to between a third and a half of the total crop, leaving the rest to mature on the plant.