Extensive versus intensive green roofs
Green roof come in different strengths, i.e. with different amounts of soil. With extensive green roofs, the soil layer is only 5 to 24 cm thick; In the case of intensive green roofs, the height of the soil layer is at least 25 cm and can be up to a meter thick. This allows the planting of almost all perennials, grasses, shrubs and even small trees. Therefore, the roof garden is actually only spoken of when it is an intensive green roof, since the extensive range of plants is only very limited. Sedum species, low-growing grasses and cushion plants are mainly grown here.
also read
- Create a roof garden
- Plant a roof
- Green roofs themselves make costs
What to look for when choosing plants for the roof garden
In principle, all plants can be grown on a roof garden, but you should still pay attention to a few things when making your selection:
- Pay attention to the location requirements of the plants
- Do not plant overgrown plants
- Make sure that all plants are well hardy
- Do not keep hardy plants in the tub
- Plant sturdy plants as possible
- Do not plant deep-rooted trees or shrubs that have strong roots and the like. U. could damage the root foil and thus the roof
- Make sure you are good neighbors when growing vegetables
Nice trees for the roof garden
If you would like to have natural shade on your roof garden, you can plant low-growing, shallow-rooted trees. These include:
- Crabapple
- Field maple
- Cinnamon maple
- Rock pear
- Copper rock pear
- different types of birch trees
- Yellow wood
- Japanese flower dogwood
- Cornel cherry
- Japanese cornel cherry
- quince
- Hawthorn
- Wing spindle bush
- Gingko
- Flower ash
Ideas for combinations and choice of plants
Grasses are often planted on roof gardens: They are robust, easy to care for, usually very hardy and look very decorative. Plant a nice mix of ornamental grasses and flowering plants as well as shrubs on your roof garden. Roses also do well in rooftop gardens. With bamboo or Chinese reeds you can provide a beautiful, natural screen and why not plant a few strawberries or lettuce as well? Lay out paths between the beds Mulch(€ 13.95 at Amazon *) or gravel.