The International Garden Festival is showing Algaegarden designed by Heather Ring, Brenda Parker, Synnøve Fredericks from London UK, at the IIDEX/NeoCon Show in Toronto on September 22 and 23. Algaegarden Algaegarden celebrates the beauty and productive potential of algae through a design that underlines its diversity and meaning. The garden leads the visitor to appreciate algae both as an alternative to oil and other energy sources and a source of food and nutrition. This garden was selected from nearly 200 projects following the call for proposals for the 12th International Garden Festival.