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.
Several varieties of maples also exhibit peeling bark, including the paperbark (Acer griseum) and the trident maple (Acer buergerianum). The paperbark is considered an understory tree because it grows to a maximum height of 30 feet; its spread usually is equal to its height.ost trees slough off some bark each year to make way for new growth. On trees such as the shagbark hickory (Carya ovata), however, most of the bark remains on the tree, curling upward and providing the inspiration for the tree's name.