Scandinavian peat jars and jiffy discs are ideal for pre-cultivating all types of plants that will later be planted in the soil of a greenhouse or nursery. They have great porosity, easily penetrate the roots and stimulate vigorous growth, are biodegradable and must be buried with the entire plant. The strips are cut with scissors when the plants are ready to be planted. By using Jiffi tubes and discs, you can avoid transplant shock by reducing shortenings or significant seedling losses.