First flush of spring?

Our roofs have 120-150mm (5″ to 6″) of growing medium, or ‘substrate’, and weigh 1 tonne per 4m2

This allows a broad variety of plants to survive the arid, sunbaked, windswept conditions of a roof, and provide nectar for insects and bees from February until October. (This is very different to a thin layer of sedum on a lightweight roof).

Below, our enclosed green roof cycle parking.

Spring bulbs