With it’s relatively long sepals, this delightful yellow native is an important plant for a whole range of wildlife, including long-tongued bees. It will grow in between 80 -100mm of a good wildlflower green roof substrate or growing medium. It is a classic native plants for green roofs in the UK if you are in the know.
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Bird’s Foot trefoil can have a very long flowering season from May to September. It is important plant for long-tongued bumblebees, especially Bombus humilis a threatened bee species. The long season provides an important forage source throughout the summer. The plant is also the primary food plant for a number of butterflies, Common Blue
Dingy Skipper, Green Hairstreak, Réal’s Wood White, Short-tailed Blue, Silver-studded Blue, Wood White and is a secondary food plant Clouded Yellow.
It can provide a low yellow carpet on a green roof and can general survive a lot of wind, sun and drought stress.
It is an important plant on many brownfield sites, especially in the SE, in and around London and the Thames Gateway area.
Definately one to encourage of small and large scale green roofs.