In modern landscaping , green roofs seem to have become a fashion , then there are many garden plants which are suitable for planting green roofs it :
( A ) General principles : selection of dwarf plants , shallow root system of plants , tall trees deep roots , crown big , but big wind on the roof , the soil is too thin, easy to be blown down . If thicker soil , it will increase the weight . Moreover, the trees developed deep roots often will tie waterproof layer and cause leakage. Therefore , the general should be used relatively low roof garden , shallow root system , drought , cold resistance, barren plants. Mainly in the following categories.
Sedum : Sedum , sarmentosum concave leaf Sedum , Sedum , such as gold leaf .
Vine locally categories: periwinkle , ivy and other Yau Ma
Perennial flower categories: Dianthus , thyme genus Coreopsis grandiflora , Achillea , Aster spp
Dwarf flowering shrubs categories: dwarf crape myrtle , Liuyuexue , mallow , hibiscus, lobular Euonymus fortunei
Shrubs, small trees : roses , spring, Liuyuexue , pomegranate, red maple , barberry , nandina , osmanthus, Fatsia , Admiralty flower, gardenia , hypericum , hydrangea , jasmine and so on.
(B ) special presentation
1 , Sedum , Genus : Sedum , Sedum genus
Characteristics: excellent drought tolerance of evergreen grass . Height of about 15 cm , leaves linear-lanceolate , fleshy, 3 whorled yellow flowers open May 5-6 , adaptable , easy to grow . Drought, cold resistance, barren .
2 , sarmentosum , Genus : Sedum , Sedum
Characteristics: perennial succulent herb, 10-20 cm tall , slender stems , prostrate or inclined , leaves three whorls . Flowers small, yellow flowers July-September . Cold, drought , moisture resistance, barren . Hi half shade environment .
3 , concave leaf Sedum , Genus : Sedum , Sedum
Characteristics: evergreen perennial herb , 10-20 cm in height . Succulent leaves , dense foliage such as carpet , Shanghai area can be exposed to winter, some leaves purple. Drought, hi half shade environment. 4 Mosaic periwinkle
Genus : Apocynaceae , vinca vine
Characteristics: evergreen vine , creeping growth of vegetative shoots , open flowers erect, 30-40 cm tall , blue flowers , flowering from April to May , with gold leaf spot . Likes semi- shade , adaptable , fast growth . Suitable for ground cover plants or for vertical greening .
4 , mosaic periwinkle , families and genera : Apocynaceae , vinca vine
Characteristics: evergreen vine , creeping growth of vegetative shoots , open flowers erect, 30-40 cm tall , blue flowers , flowering from April to May , with gold leaf spot . Likes semi- shade , adaptable , fast growth . Suitable for ground cover plants or for vertical greening .
5 , leafy periwinkle , families and genera : Apocynaceae , vinca vine
Characteristics: dark green leaves no gold spot , the rest of periwinkle with mosaic .
6 , Changchun Mucuna , families and genera : Fabaceae , genus Mucuna
Characteristics: Evergreen , growth is very strong , like light, Yeguang Liang , blue and purple inflorescence large and beautiful , such as strings of wind chimes . Can be used as scaffolding , porch , dead trees and green facade materials .
7 , thyme, Genus : Labiatae , thyme genus
Characteristics: evergreen perennial herb , 5-10 cm in height , leaves small , with smell , purple flowers , flowering summer. Cold, heat resistance, resistance to infertile.
8 , Changxiashizhu , Genus : Caryophyllaceae , Dianthus
Characteristics: evergreen, three quarters of flowering , perennial herb, height 8-10cm. There are deep pink color , pink or white and other colors , flowering from May to November . Hi light shade of fear , drought avoid floods, cold resistance , long life , large flowers .
9 , Coreopsis grandiflora , Genus : Asteraceae, genus Coreopsis
Characteristics: year-round evergreen plants 30-40 cm tall , yellow flowers from May to June , stems erect, much branched , of cold, drought resistance, barren , hi light. Strong growth potential, prone to suckering , a self- sow reproduction capacity.
10 , yarrow , Asteraceae , yarrow is
Characteristics: perennial flower , plant height 40-60 cm, flowers, leaves both the United States , various colors , white, red dominated , flowering from May to November , the sun or semi- shade could grow enough over the cold , cold .
11 , Aster , Genus : Asteraceae, Aster
Characteristics: Perennial herb, 60-100 cm in height , dark green leaves , purple color , purple , flowering from August to October , cold, drought , hi light , fast growth .
12 , dwarf crape myrtle , families and genera : Lythraceae , Lagerstroemia
Characteristics: Perennial , long flowering flowering shrubs , flowering from May to October , more color , red, purple and other colors , fast growth, strong resistance, cold, drought , salinity , Low , extensive management .
