AB Bishop - author and horticulturalist, Craig Wilson - Gentiana Nursery, James Beattie - horticulturalist and garden designer, and Greg Boldiston - Longinomus Plants.
Pam Vardy, Tim Sansom - Australian Eco Systems, Dr Chris Williams - Melbourne University, Burnley Campus, and Rosemary Kelly - Manager, Volunteers Program, Fare Share
Pam Vardy, Craig Wilson - Gentiana Nursery, Graham Sargeant - Silkies Rose Farm, Clonbinane, and Virginia Heywood - guide, Royal Botanic Gardens Melbourne.