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). 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. Chicory is real beauty – as a plant of dry and infertile soils, it can be found on wastelands, dunes, roadsides and dry meadows. These qualities make it ideal for using on a green roofs. |
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