The transport height for mixed Calathea can be indicated from Friday, 9 September 9 2011 using grading code S15. This is the sixth sorting feature.

The height difference in mixed lots can be substantial. By adding the transport height (also known as ‘logistical height'), the buyer is better informed and it removes the need for the usual rule regarding height difference within a lot. The opportunity to indicate transport height was introduced on 1 August this year for mixed Cacti/Succulents and mixed Bromeliads.