Wednesday, January 13, 2010
On streetscaping (vi) Trees
City standards are sometimes unhelpful. The city may require large canopy areas before planting trees, and prefer to centre trees in the front space of a building rather than along the curb or sidewalk.
The tree solution …
More aggressive selection of tree and shrub planting opportunities. Selection of fastigate (columnar shaped trees) or smaller trees to fit into smaller spaces.
Use of structural earth permits trees to thrive close to curbs, sidewalks, on bulbouts. Read more at http://westsideaction.blogspot.com/2009/11/structural-earth.html ; http://westsideaction.blogspot.com/2009/11/tree-will-thrive.html.
Structural earth is a mix of gravel and clay and water-retaining modules. The gravel packs down into a honeycomb-like mass, so the tree roots have room to spread and grow while the gravel is stable enough to support sidewalks, bus stops, or parked cars above. The result: trees can once again thrive in the city.