Plants for intensive and semi intensive green roofs.
Green roof and nurseries differences.
Due to the differences in growing medium between an extensive and intensive green roof the latter can accommodate deeper plantings with more diversity.
15 to 50 per square foot.
The soil is usually not more than 5 deep and is sometimes contained by a tray system which provides a barrier to excessive growth protects the roof membrane and also interlocks the.
As the nation s leading supplier of plants for green roof systems since 1998 our accomplished horticulture team has more experience than any other nursery in the united states growing plants for successful green roof projects.
Both techniques may partially or completely cover a roof.
Both may feature recreational facilities or commercial facilities such as a rooftop cafe.
An intensive green roof is more like a conventional garden or park and can have virtually no limit to the plant types that can be used.
Container gardens on roofs where plants are maintained in pots are not generally considered to be true green roofs although.
A roof garden is a similar technique that places container gardens on a roof.
8 to 20 per square foot.
Green roof plants should also be attractive and offer food and.
Meadow saxifrage saxifraga granulata erupts in snow white blooms between april and june and the kidney shaped leaves offer a stunning display for a green roof the plants grow up to 50 cm tall offering volume to your home.
For a conventional roof.
An extensive green roof uses a thin 8cm to 20cm layer of substrate to create a carpet of plants often sedums and grasses.
Both benefit the environment.
When choosing plants for a green roof they need to be able to withstand wind and frost be drought resistant tolerate living in poor soil and be maintenance free.
Founded the first green roof nursery in north america.
An intensive green roof can support much greater depths of.
Emory knoll farms inc.
Extensive green roofs are generally made up of a very thin layer of soil or other planting medium with shallow root plants like sedum mosses and grasses.
A 2006 study by the university of michigan comparing costs of conventional and green roofs showed that on average installing a green roof costs about 22 00 sq.
A green roof or living roof is a roof of a building that is partially or completely covered with vegetation and a growing medium planted over a waterproofing membrane it may also include additional layers such as a root barrier and drainage and irrigation systems.
Extensive green roofs often occur on structures that cannot support more than just shallow substrates and so these roofs are only minimally accessible to people.
But the difference between a green roof and a rooftop garden is kind of like the difference between a turf lawn and a patio garden bed with trees and shrubs.
We are active in green roof plant research.
Green roof plants need to be chosen with care however as not all plants are suitable for growing in this way.
