There are severe constraints on the supply side of the provision of infrastructure in Asia. The infrastructure financing gap between what is invested in Asia-Pacific (around US$48 billion) and what is needed (US$228 billion) is around US$180 billion every year.
Placed in the centre of a garden bed, they can be underplanted with low growing shrubs and bulbous plants for an harmonious effect; or underplanted with grass for a contrasting statement. Alternatively, the tree can be situated at the end of a long garden to draw visitors out into the garden.
The beauty of the weeping willow, and its dense shade, makes it an enticing tree to plant in the home landscape, but it is susceptible to numerous pests and diseases. Borers, caterpillars, scale and lacebugs are common problems, as are canker, branch blight, root rot, rust and sooty mold.he weeping willow constantly sheds leaves and twigs and has weak branches that can break off in storms and damage nearby structures; its numerous roots can make it impossible to work the soil beneath it to plant flowers or groundcover.