Christine Lavelle/ Michael Lavelle/ Peter Anderson (PHT)/ Robert Pickett (PHT)
(2)
John Nicholass/ Peter Anderson (PHT)
(2)
American Horticultural Society (COR)/ Peter Anderson (PHT)/ Alan Toogood (EDT)
(1)
Christine Lavelle/ Michael Lavelle/ Peter Anderson (PHT)
(1)
Ian Redmond/ Peter Anderson (PHT)/ Geoff Brightling (PHT)
(1)
Mary Karlin/ Ed Anderson (PHT)/ Peter Reinhart (FRW)
(1)
Susan M. Margeson/ Peter Anderson (PHT)
(1)