Green Roof Alliums

Each flower head comprises a tight cluster of tiny florets that emerge deep green but mature top to bottom to rose purple.

Green roof alliums. 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. Description contains a blend of available allium bare root bulbs from our range of green roof appropriate allium stock. Succulents particularly colourful sedums dominate shallow substrate green roofs across temperate europe and north america. Both have performed admirably in studies conducted at michigan state university.

Also known as round headed leek this allium species produces cute reddish purple egg shape flower heads. Furthermore there are native allium species across north america and europe including the uk and france. Called chives in english it is a widely used herb. Allium summer beauty creates a visually noticeable vertical accent adding some height to an extensive roof planting while increasing the potential for biodiversity.

These roofs are essentially maintenance free. 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. Evergreen sedum species especially the vigorous creeping varieties such as sedum album which is hardy in u s. Foliage may remain green in some locations or in mild winters.

Other common green roof plants include ice plant delospermum sp hens and chicks sempervivum sp creeping thyme thymus serphyllum chives and ornamental onions allium sp phloxes phlox sp pussytoes anntenaria sp thrift armeria sp and false rock cress aubretia sp. Alliums are always a great choice for green roofs. Please contact us if you are interested in installing this mix as plugs. In fact allium schoenoprasum one of the most commonly used has a circumpolar distribution.

Please contact us if you are interested in installing this plant as plugs. Department of agriculture plant hardiness zones 2 through 9 can go without water. Available as bare root bulbs. Species could include allium schoenoprasm and cultivars allium cernuum allium senescens and subspecies etc.