They can be created for example on a gently sloping shed roof by building a grid of wooden cells on top of the roof and filling the cells with compost.
Garden wooden roof for plants to grow on.
It goes without saying that in order to grow a roof garden you must have a roof.
The vegetable plants that are the best adapted to container growing are the vegetables and herbs that are grown for their leaves like chards spinach and kale.
Better moisture conservation and nutrient supply room for ample root development.
To stop plant roots and water penetrating the roof cover it with either a 300micron thick damp proof membrane from diy shops or a butyl pond liner from a garden centre.
Whether it s fruit shrubs vegetables or herbs most edible plants can be grown in a container on a roof.
You ll be better off growing shade loving plants.
The main difference with a sloped roof is the addition of cross pieces perpendicular.
Selection of terrace garden plants completely depends up on the factors listed above.
If your roof is painted black it will be significantly hotter than a white or silver roof black roofs in new york city can reach 170 f on a very hot day and you ll need plants that can survive such.
Many of the most common culinary herbs happen to grow in dry rocky places making them ideal candidates for a green roof.
For extra shade consider adding screening in the form of curtains or a canvas cover on top.
Avoid using just one species of plant across the entire roof.
These need 10 20cm 4 8in depth of growing medium enough to support perennials but not shrubs and trees.
This is where a living roof crosses over to become an herb garden.
Suitable waterproofing root barrier drainage and filter layers are necessary.
Edible plants adapted to container growing.
Rosa rose roses make a good specimen in a roof container garden where the colourful blooms provide a point of interest from summer to autumn rosa flower carpet series is a spreading ground cover rose.
A typical living roof requires a border to keep the growing medium from falling off at the edges.
To grow even more plants up pergolas trellis panels can be attached giving additional support for climbing plants.
Ensure plants establish properly by watering for the first year after planting.
Taking cuttings or sowing seed to grow on and transplant will of course be cheaper still.
In general better to choose large containers when growing plants for terrace garden because in large containers plants grow more easily.