by Lee Parks, International ASLA, and LIAO Jingjing

This is the second installment in a three-part series on the evolution of AECOM’s green roof in Shanghai. Click here for Part 1, published last week.
As the plants established during the comfortable spring weather, employee engagement was high. The increase in flowers saw a direct increase in visiting pollinators, mostly bees. Flowers and foliage added visual amenity of the space, with ornamental grasses and flowers combining to create a vibrant display. Employee photo sharing on social media celebrated the beauty to be found in nature, recording wildlife spotted and seasonal highlights. The garden supported a ‘Wellbeing At AECOM’ campaign by encouraging employees to relax and enjoy contact with nature. Friends and families joined in the maintenance and watering. By June the salad and herb garden was productive and bearing results to be enjoyed.
All appeared well until the fiery and crushing July heat became a challenge for gardeners and the garden. Employee engagement quickly faded and only the core Roof Garden Committee members sustained interest to maintain and monitor plants. With no automatic irrigation system, the containers relied on employees to hand water with watering cans or a hose during dry periods.