There are many ways to maximise a garden’s usefulness to wildlife. One of them is the creation of a green roof.
Whether you transform a shed or a gazebo, a log store or a bike shelter, the top of many structures can be turned into a home for plants. And with good planning and the right plants, your green roof will establish itself as a viable wildlife community that needs only occasional intervention from you.
So seize the opportunity to ‘elevate’ your planting to a whole new level, with our pick of plants for a soil depth of 50mm.
A wonderfully textured plant with pink burrs, Acaena microphylla forms dense carpets that tolerate drought. The plant is a member of the rose family and each leaf resembles a tiny glaucous rose leaf. This plant flowers from June to September.
Ground-hugging Cotula hispida forms mats of filigree silver foliage that are soft to the touch. The tiny yellow button flowers are like the centre of a daisy – not surprising, as this plant is a member of the daisy family. This plant flowers May to August.
The leaves of sedums have built-in reservoirs to withstand drought. Stature and leaf size vary among the species, but S. rupestre, S. reflexum and S. acre are ideal for roofs. Each leaf can grow into a new plant. This plant flowers from June to August.
Legend has it that sempervivums and their close relative Jovibarba should be planted on roofs to stave off thunderbolts. This undoubted benefit aside, they still grow well on a roof with no need for soil. Sempervivums flower from June to August.
The tiny flowers of native Thymus serpyllum are rich in nectar, so are great for insects. This plant thrives in thin soil with sharp drainage, so a roof is the perfect location, where it will create a dense covering. Creeping thyme flowers from May to August.
Kate Bradbury says
Add lightweight stones and pieces of wood to the roof to create additional shelter for wildlife.