On most of those ‘important days’ in our life, flowers are usually around -- weddings and anniversaries, births and deaths, Mothers’ Day and Valentine’s Day. Roses are red, but not very ‘green’. The truth is, there is an environmental cost with every bouquet of flowers. Melisa Idris speaks to Brenda James, Founder and Principal Florista of Nook Flowers, a boutique floral design firm doing its best to champion sustainability in floristry.