Trees play an important role in Napier, enhancing the city's streets, providing shade and shelter and softening the built environment.
A survey done in 1999 recorded approximately 18,600 trees in the city's public spaces - 6600 on road reserves and 12,000 trees on recreation reserves, sports grounds and cemeteries.
Those highlighted in this section are particularly deserving of attention. They include trees worthy of legal protection to ensure their ongoing survival.
As well as their aesthetic appeal, trees on Napier's reserves and cemeteries have a value based on factors that include:
- historical or cultural associations
The underlying value is the cost of replacement - the cost of purchasing a new young tree of the appropriate species and variety, as well as planting and supporting costs.
The added value as a tree matures is the accumulated costs of seasonal water, pruning, spraying and general care. As a tree grows and becomes an integral part of the landscape, it also gains values relating to its size, quality and the way in which it enhances the environment.
For some trees, the aggregated value can be very high. This may be highlighted when the tree's importance is considered against competing values - street widening, for example, or building redevelopment.
The valuation method used by the Napier City Council is outlined in the STEM Manual (Standard Tree Evaluation Method, Ron Flook, 1966, ISBN: 0-473-04039.5)
Trees or groups of trees that should be protected by a Preservation Order. Sited on public land, these trees are considered worthy of preservation for one or both of the following reasons:
- The tree makes a significant contribution to the visual amenity of the area.
- The tree is a notable large specimen of its species within the city area.
Noteworthy street trees within the city for their aesthetic value.