Regarding the design strategies to maximise Biodiversity, it is recommended to establish design strategies to enhance biodiversity and natural colonization on green roofs.
Birdsfoot trefoil. A native wildflower that is invaluable for bees
Often found growing in lawns, this low-lying plant is part of the pea family and produces a mass of yellow flowers in summer, which then develop into seedpods. Ideal as a green roof plant, birdsfoot trefoil is rich in pollen, so a favourite for bees and butterflies.
Recommended green roof growing medium parameter ranges