Green roofs of creeping plants and herbs need some sort of frame around the perimeter to hold everything in place.
Plant material for green roofs.
Succulents such as sedum are often chosen for extensive green roofs because they withstand harsh conditions and minimize water loss.
This can be made out of timber while off the shelf installations are typically metal.
These are the mainstays of any green roof and should form the bulk of the planting unless provisions are made for the roof to support soil deeper than the 3 to 4 inches that is typical.
The ideal extensive green roof medium consists of a balance of lightweight well drained materials possesses adequate water and nutrient holding capacity and will not break down over time.
Think of a green roof as a lasagne of ingredients.
Plants are available as starter plants plugs or in larger containers 4 and bigger.
Plants for green roofs our plants are perfect for green roofs nats nursery grows a great selection of plant materials for green roofs including perennials bulbs grasses ground covers and 30 varieties of sedums.