BFS 12 – Green Roof Wildflower Seed Mix

A diverse seed mix developed for biodiverse green roofs in urban and countryside settings. It contains 25 UK native wildflowers, grasses and sedum, chosen to help meet BREEAM biodiversity requirements.

Foraging plants such as viper’s bugloss and bird’s-foot trefoil have a long flowering period and attract bumblebees, while hoary plantain provides seed for birds. The mix suits lightweight, recycled crushed-brick green roof substrates. Because the substrate is low in fertility and dry, the sward should need very little maintenance beyond controlling pernicious weeds that arrive naturally, such as buddleia. The mix also includes stonecrops, which provide ground cover in drought and habitat for notable invertebrates.

Sow at 2g/m². The mix is 85% wildflowers (21 species) and 15% grasses (3 species).

All seeds in this mixture are subject to availability at the time of purchase.

Species in the BFS 12 mix:

• Wildflowers:
  • 2% Achillea millefolium – (Yarrow)
  • 6% Agrimony eupatoria – (Agrimony)
  • 8% Anthyllis vulnearia – (Kidney vetch)
  • 4% Daucus carota – (Wild carrot)
  • 4% Echium vulgare – (Viper’s bugloss)
  • 8% Galium verum – (Lady’s bedstraw)
  • 1% Hippocrepis comosa – (Horseshoe vetch)
  • 1% Hypericum perforatum – (Perforate st. John’s wort)
  • 5% Leontodon hispidus – (Rough hawkbit)
  • 4% Leucanthemum vulgare – (Oxeye daisy)
  • 2% Linaria vulgaris – (Common toadflax)
  • 7% Lotus corniculatus – (Bird’s-foot trefoil)
  • 3% Plantago media – (Hoary plantain)
  • 3% primula veris – (Cowslip)
  • 6% Prunella vulgaris – (Selfheal)
  • 2% Rumex acetosa – (Common sorrel)
  • 6% Sanguisorba minor – (Salad burnet)
  • 1% Scabiosa columbaria – (Small scabious)
  • 5% Silene vulgaris – (Bladder campion)
  • 1% Thymus praecox – (Wild thyme)
  • 3% Trifolium pratense – (Red clover)
  • 3% Origamum vulgare – (Wild marjoram)