Likhetho li se li amoheloa bakeng sa Likhau tsa 2011 tsa Nature Hills Nursery Green America, tse etselitsoeng ho fana ka kananelo ea naha le $5,000 ea limela ho lihlopha tsa sechaba le mekhatlo e ntlafatsang tikoloho ea bona ea lehae. Khau ea selemo le selemo, e tšehelitsoeng ke Omaha-based Nature Hills Nursery, e tla fanoa ka Mmesa 2011 ho lihlopha le mekhatlo e sa etseng phaello eo ka ho toba e "talatsang" metse ea bona, lirapeng tsa boikhathollo, likolo le libaka tsa sechaba ka ho lema lifate, lihlahla le limela tse ling.
Likōpo tsa 2011 Nature Hills Nursery Green America Awards li tla amoheloa naheng ka bophara ho fihlela April 1, 2011. Ho fumana boitsebiso bo eketsehileng le ho etsa kopo ea khau ea 2011 inthaneteng, etela sebaka sa marang-rang ho www.naturehills.com/green_america_awards.aspx