Who says cities can’t accommodate biodiversity? , It’s speculated that the lightweight seed was windblown onto the rooftop where it landed onto the green roof substrate that was populated with mycorrhizal fungus required for germination. Flowering can take five years from germination.
Since the rare green winged orchid requires such specific germination conditions, some are speculating this specimen may be the first of many plants to establish on the rooftop.
Islington Council encourages green roofs on new development and has approved almost 13.5 acres of them since 2006.
NewTerrain June 15, 2016.