Erratum

Sincere apologies to John Haggar from the OSGB Journal editor for an error in the February issue which occurred during the editing of his article on Dactylorhiza – a practical guide to successful cultivation.  Please see OSGBJ (2015) 64(1): 38, The plunge bed, paragraph 1.

Although the breeze blocks need to be stood on a waterproof or impervious base, it is crucial that the blocks are not LINED with waterproof material (as the edited article erroneously states) as this would just waterlog the pots and all the plants would die. The whole system works only because the wet and freely watered sand is free-draining via the gaps beneath and between the blocks.

Some of John Haggar's dactylorhizas growing in an unlined and free-draining plunge bed
(photo by John Haggar)