Top 10 Green Roof Plants

Harebell
The dainty form of the bellflower that thrives in sunny sites, wet or dry. The nodding flowerheads appear in May and continue on and off into September. Use harebells to add texture to your roof. Height: 15-30cm. Latin name: Campanula rotundifolia

Yarrow
This stunning perennial bears flat panicles of white or pink flowers all summer long. Give it a sunny site and it will thrive. This meadow plant is a particular favourite with bees and butterflies. Height: 10-45cm. Latin name: Achillea millefolium

Small scabious
Enjoy the light blue flowers of this delightful wildflower from July to Septmeber. It’s another bee and butterfly pleaser, while the birds will take the ripe seeds. Prefers a sunny site. Height: 30-40cm. Latin name: Scabiosa columbaria

Biting stonecrop
A ground-hugging sedum with gloriously bright-yellow flowers in late spring and summer. This sunny customer will create a real splash of cheer on any rooftop. Needs good drainage. Height: 2-10cm. Latin name: Sedum acre

Marjoram
Wild marjoram grows on many free- draining hillsides. The aromatic leaves give rise to pink flowers in late summer. Prized by pollinators such as the small copper butterfly. The leaves are great in cooking. Height: 30cm. Latin name: Origanum vulgare