Fertilizing a thin layer of soil
The soil on the store’s green roof is only 150 mm deep. Generally speaking, plants that require little care and few nutrients are grown in such conditions—the exact opposite of vegetables! So we called in an agronomist to develop a specialized fertilization plan.
Beating wind and heat
Wind and heat are more intense on a roof, so the team installed windbreaks and shade houses to fix this problem.
Securing plant stakes, but not in the ground
Staking plants is more complicated on a roof since it’s impossible to secure the stakes in the ground. The team came up with a brilliant solution—they took plastic buckets that would have ended up in the store’s recycling bin, filled them with cement, and inserted steel rods to serve as stakes.