Black Horehound (Ballota nigra) is a great plant for wildlife on green roofs. It is a perennial, with heart-shaped, bright green, toothed leaves that turn black once the plant has flowered. The stems go a purple/black as well. But it is the mauve/pink flowers that make it a star plant for bees, butterflies and other [...]
Wild thyme is a native perennial that forms a scented cushion or mat of pink flowers. It can be found in a variety of dry grassland habitats from in chalk to heaths to cliffs to dunes.
Lady’s Bedstraw is found on dry, sandy sites, grasslands and dunes. Being suited to dry and well drained situations make’s it an ideal for green roofs.