Easy-to-Grow & High Yielding! Rhubarb Glaskins Perpetual will produce large, long stemmed (12-14 inch) stalks which are incredibly juicy & hold their flavour well. This variety will produce some variation in the seedlings ranging from green to pink & even red-stemmed plants. It can also be harvested late in the season due to its low oxalic acid content. The perfect Rhubarb to grow for making jams, tarts or pies.