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© 2005 Dr. Horst Kretzschmar     Pruning Dr.Horst Kretzschmar's greenhouse after the obligatory hard pruning of about 150kg biomass of Tacsonias to fit the plants inside  before the replacement of the Acrylamid plates. Horst has been using this very drastic procedure successfully for the last 10 years.The biggest plants have a stem diameter of 5 cm.