ZBRRA

8.1        SELECTION

Having established the role of the street tree and the particular design parameters for an individual street the most appropriate tree species will be selected.

8.2        CONSULTATION

The proposed species selected for a street must be confirmed through public consultation, which could be undertaken as part of the consultation process for a general street parade.

8.3        PLANTING

All planting will follow the street trees selected in accordance with the original design for the street.

8.4        MAINTENANCE

Once established, the street trees will be maintained to ensure their health and longevity.  When a tree dies, it will be replaced by the particular species listed for the street.

A South African character will be reinforced in choice of species.  The ratio of indigenous to exotic should be 70% : 30%.

8.5        CRITERIA

Criteria for selection of street trees includes the ability to :-

·                     Tolerate harsh growing conditions, including drought, heat, contaminated compacted soils, poor aeration and drainage, etc.

·                     Attain a clear trunk to at least 2.5 metres over pedestrian carriageway and 4.5 metres over vehicular lanes.

·                     Have a branching habit that extend upwards from the trunk

·                     Have a rooting system that is unlikely to lift curbs and paving.

·                     Is consistent in form and growth.

·                     Does not have a fruit and seed that is likely to create a pedestrian hazard and is not toxic to humans.

·                     Trees can be planted at an advanced size so that they are less prone to vandalism and provide an immediate visual impact.

·                     Species selection should give consideration to the effective shade canopy of the tree (i.e. density of foliage and crown spread).

·           Tolerates pruning to attain the required clearances, whilst maintaining a good structure and form.