Semi Intensive Green Roof Plants

Due to the differences in growing medium between an extensive and intensive green roof the latter can accommodate deeper plantings with more diversity.

Semi intensive green roof plants.

Semi intensive green roofs require a deeper soil layer but the payoff is in the types of plantings that can be used. Plugs are small plants that have been grown in a nursery and are planted into the green roof media on the roof. In addition to the mosses grasses and sedum of extensive roofs semi intensive plantings include herbs flowering plants taller grasses and small shrubs. These vegetative green roofs are considered semi intensive due to the landscape design coupled with increased levels of maintenance.

Semi intensive green roof a semi intensive green roof system is characterized by small herbaceous plants ground covers grasses and small shrubs requiring moderate maintenance and occasional irrigation. Typical sizes include quarts 12 per flat 3 24 per flat 38s 38 per flat and 72s 72 per flat. 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. The greengrid system is a proprietary technology of weston in the u s.

Try dry habitat perennials and ornamental grasses such as rudbeckia achillea potentilla armeria dianthus helictotrichon sempervirens stipa tenuissima and even bulbs such as muscari or small allium species such as allium flavum and a. A typical growing medium depth for a semi intensive green roof is 6 to 12 inches. Semi intensive intensive plants greengrid is a registered trademark of weston solutions inc. Plants for intensive and semi intensive green roofs.

Because this is the semi intensive level of the roof a variety of grasses bulbs and annuals were planted in the growing media mounds. Depth of growing medium is typically 6 to 20 inches and can be planted with a large variety of plants. Dedicated irrigation system variable annual fertilization and advanced horticultural care.