Mark Cullen is the volunteer spokesperson for SHARE Agricultural Foundation www.shareagfoundation.org Canada Blooms Flower and Garden Festival www.canadablooms.com the Composting Council of Canada www.compost.org and Patron for the Toronto Parks and Trees Foundation www.torontoparksandtrees.org. Mark writes a gardening feature column for the Toronto Star. Look for his articles/question & answers/weekly tips in the New Homes and Condos section every Saturday (www.yourhome.ca). Listen to ‘The Garden Show with Mark Cullen’ each week and on the CANADA AM weekly Gardening segment with Jeff Hutcheson which airs Wednesdays at 8:40 a.m. on www.ctv.ca/canadaam. You can catch ‘The Green File’ on AM radio station 680 News in Toronto Thursday, Fridays,and Saturdays (www.680news.com).