Rhubarb can best be propagated by division of the roots. Propagation from seed is not so simple, it takes a long time and often gives poor results. In the rest period, from October to November, when the leaf has died, can mature plants from a minimum of three years are removed from the ground. Cut the roots into pieces with a sharp knife or spade. Ensure that each root portion as "n 10cm is large and has a growth bud. Plant the separate pieces rather than as" n 90cm apart. The soil press firmly and water. Possibly give a winter cover.