Green Roof Alliums

Their low growing and or spreading habits great drought tolerance seasonal flowers and contrasting foliage colours textures and forms make them ideal candidates for green roofs.

Green roof alliums.

Called chives in english it is a widely used herb. Foliage colors can vary from green to yellow red and blue and flowers from white yellow and pink to reddish. Department of agriculture plant hardiness zones 2 through 9 can go without water. Also known as round headed leek this allium species produces cute reddish purple egg shape flower heads.

Species could include allium schoenoprasm and cultivars allium cernuum allium senescens and subspecies etc. Various low growing 6 10 tall alliums can be used for accent and they typically have green or bluish foliage and flowers of white pink or purple. What are called extensive green roofs are usually planted with low growing plants heat and drought resistant species such as sedums or grasses such as allium. Alliums are always a great choice for green roofs.

Allium summer beauty creates a visually noticeable vertical accent adding some height to an extensive roof planting while increasing the potential for biodiversity. Foliage may remain green in some locations or in mild winters. Please contact us if you are interested in installing this plant as plugs. In fact allium schoenoprasum one of the most commonly used has a circumpolar distribution.

Evergreen sedum species especially the vigorous creeping varieties such as sedum album which is hardy in u s. Each flower head comprises a tight cluster of tiny florets that emerge deep green but mature top to bottom to rose purple. Both have performed admirably in studies conducted at michigan state university. Two alliums that are useful on green roofs are allium cernuum and allium schoenoprasum.

These roofs are essentially maintenance free. Available as bare root bulbs. Description contains a blend of available allium bare root bulbs from our range of green roof appropriate allium stock. Furthermore there are native allium species across north america and europe including the uk and france.