The use of biopolymers in horticultural and other sectors is big news and the manufacture of   biodegradable plastics is rapidly growing from about 25,000 tons in 2000 to an estimated 250,000 tons for 2003. Using plant starch as basis, Novamont in Italy manufactures the material Mater-Bi (see Global News Nr. 340 concerning biodegradable pots). The Dutch manufacturer Rodenburg Biopolymers produce a different biopolmer named Solanyl (appropriately named since the source of starch is a by-product of the potato processing industry in the Netherlands = Solanum tuberosum). This product is now being used for the injection moulding of plant pots, called 'Grow and Go'. These pots can be planted directly in the soil, saving time, causing no interference with the root system and reducing waste since the pots decompose in the soil. From an ecological point of view, 40% less energy is required to manufacture these pots in comparison to ordinary bulk plastics and renewable resources are being utilised as source material rather than fossil fuels. This new generation of pot, currently available as 9cm and 13cm diameter, can also be used in potting machines and other mechanical handling devices. Other sizes can be made according to market demand. For Nursery-stock growers, pots can be placed outside on matting and trials suggest that they will remain intact for a full season or more, through the appearance of the pot will show some change. After planting in the ground or under composting conditions, the pots breakdown into CO2, water and biomass. Main sales are currently in the Netherlands and in Great Britain (in the latter Country due to environmental legislation pots are classified as packaging). Contrary to Mater-Bi, Solanyl is not adapted for the manufacture of biodegradable horticultural films. "FloraCulture International". For further information, contact Ellen van Gaalen, sales@biopolymers.nl  www.biopolymers.nl