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 [...]
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Flax (Linaceae) can be found on green roofs throughout the northern temperate world. A bright yellow plant of dry pastures, grassy slopes and well-drained calcareous soils the Bulbous buttercup (Ranunculus bulbosus) is well suited to extensive green roofs of a reasonable depth -greater than 100mm). This delightful ice-pink flower is a real beauty and can add elegance and colour to any small scale green roof. Originally from the Mediterranean, this showy plant can be found on walls, waste ground, railway banks and cliffs. As it thrives in well-drained soils it is a perfect for planting on green roofs. |
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