Herbs Extensive Green Roof Plant List
Green roofs and to trial untested plants for their adaptability to this environment.
Herbs extensive green roof plant list. An extensive green roof has a soil depth of three to six inches. With all this in mind here are ten of the best green roof plants to choose from. The ultimate goal of the trial is to develop a diverse and extensive list of recommended plants for green roof cul. For a conventional roof.
Plants for green roofs. Careful plant selection and maintenance is needed to ensure annuals do not become weeds on a green roof. Salt tolerance of common green roof and green wall plants. Many other sedum species can also perform well.
Types of green roofs. Ferns such as polypodium vulgare and asplenium trichomanes could be used in dry shady conditions. 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. Green roofs are internationally placed in three different types.
The plants chosen must be appropriate for the roof type extensive intensive or semi intensive. This is where a living roof crosses over to become an herb garden. Along with the makeup and depth of the growing medium selecting the right plants is crucial to the success of a green roof. Climate clearly plays a major role in choosing the best plants for a green roof.
Non native succulent species appropriate for extensive green roofs in minnesota. Of course there is some cross over between the categories. Try dry habitat perennials and. Fol lowing an initial five year evaluation phase new trials of uncommon and or untested plants will continually cycle into the green roof gardens.
This list features a selection of plants that are available in many parts of the country. It is not meant to be a complete list. Album delosperma could be tried in a sunny frost free area. 8 to 20 per square foot.
Some green roofs are constructed specifically to support sports turf. Many of the most common culinary herbs happen to grow in dry rocky places making them ideal candidates for a green roof. 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. Many species of sedums grow well on green roofs in minnesota.
Mat forming species of sedum sempervivum and moss are good choices. These require irrigation and a substrate depth of at least 200 mm. Vegetables are the other main group of annual plants used on green roofs. Green roof plants should also be attractive and offer food and shelter for wildlife.
The list below shows some of the most common species.