Rhubarb is a perennial vegetable that is primarily ... 3 teaspoons of a complete fertilizer such as 10-10-10 per square foot of planting area. Cover the crowns with no more than an inch or two ...

Reduce the heat and cook for 3-4 minutes, or until just thickened. Serve the parkin in squares with a spoonful of rhubarb to one side and the syrup over the top. Finish with a scoop of ice cream.