Green Roof Soil For Sedums

Album delosperma could be tried in a sunny frost free area.

Green roof soil for sedums.

Now comes the growing medium which for a sedum roof should be at least 8cm 3in deep and for a roof of wildflowers herbs salad and strawberries at least 15cm 6in deep. Sedum plant growth types. Like most succulents sedums are sensitive to wet soil which can quickly lead to root rot. The creeper types have super fast growth rates sometimes expanding up to.

Regardless of which type of soil you decide to use a mulch of lava rock or other stone will be beneficial. The leaves of sedums have built in reservoirs to withstand drought. There will be a consistent layer of soil on the roof over the liner or root barrier and once the plants. Ferns such as polypodium vulgare and asplenium trichomanes could be used in dry shady conditions.

The lite system is typically used on retrofit projects when the roof is engineered with only 15 to 17 pounds per sf for the green roof component. There is a wide variety of sedums. An all purpose soil less peat free potting mix is fine for growing herbs and other edibles but mix in plenty of perlite to both improve drainage and save on weight. Common sedum species used include sedum acre s.

Its soil depth is a full 2 inches enough to support many low growing succulents and a limited number of accent plants. This plant flowers from june to august. Stature and leaf size vary among the species but sedum rupestre sedum reflexum and sedum acre are ideal for roofs. An extensive green roof or sedum roof is a roof with vegetation that is more or less self perpetuating and that can further develop and maintain itself.

Liveroof offers the only pre vegetated hybrid green roof system that s delivered in a convenient modular format yet offers a monolithic soil layer. Sedums used on green roofs can broadly be separated into four different classes. Each leaf can grow into a new plant. It is generally not recommended for hot climates.

Try dry habitat perennials and. Roughly speaking extensive green roofs have a substrate thickness of between 4 and 15 cm and a weight of 30 to 220 kilo per m2. Is the pacific northwest regional distributor of liveroof brand green roof systems. Mat forming species of sedum sempervivum and moss are good choices.

Because they thrive in well drained soil all stonecrop sedums can be planted in sandy soil in rock gardens crevice gardens raised beds green roofs hillside slopes and succulent containers that have drainage holes. What kind of mulch is best. Some green roof builders have concerns that the lava rock could potentially puncture the liner but if applied correctly this shouldn t be a problem. Ruderal creepers like sedum album acre and sexangulare these are fast to establish themselves on the roof.