Viridian III Technical Specification OPW1 [As Published] · 142008.256

                                                                       VIRIDIAN III - Landscape Works

14.    PLANTING WORKS


14.1   GENERAL
Supply the scheduled number of plants to the quality, size and health in accordance with this
specification and Plant Schedule. Plants shall be secured in sufficient time to ensure they
achieve specified sizes and quality for the Contract. The Builder must be informed
immediately if any difficulty is encountered in procuring the plants on the nursery site at
which they are to be stored, and clearly labelled as being for this project. The allocated
plants must also be made available to the Landscape Architect to be inspected at all times.

Photographic evidence of all species is required 4 weeks after Contract has been let.
Photographs must contain at least two plants / trees per species including a measuring staff
or other measuring devices illustrating height and spread of individual species.


14.2   SPECIAL REQUIREMENTS
All plant stock is to conform with the criteria outlined in the NATSPEC Guide:
Specifying Trees.
Attain all plant stock from a QALI registered supplier with an Australian Standards Approved
Quality Assurance System.
The nurseries location must be situated within 100km radius of Noosa and inspection of all
plant stock shall take place at one location only. Alternatively, the Contractor shall reimburse
the Landscape Architect for time and travel to inspect the plant material. The Contractor
shall be suitably qualified to certify all plant stock.
It is recommended that a Noosa Council approved arborist certify all trees 45L and above to
avoid replacement at final inspection. Is so please provide written certification by arborist.


14.3   EXCAVATING FOR PLANTING
Planting Areas: Excavate a hole for each plant large enough to provide not less than
200mm of topsoil round the root system of the plant, or as shown on the Drawings.
Planting of Trees: Excavate a hole a minimum 300mm wider than the rootball and cultivate
site topsoil to a depth of 200mm below. Loosen compacted sides of the hole, as necessary
to prevent confinement of root growth to the hole.


14.4   PLANTING


14.4.1 GENERAL
Set out plant material in positions and quantities as shown on planting plans unless
otherwise directed. If it appears necessary for plants to cover the area more uniformly, or for
similar reasons, notify the Landscape Architect for instruction and direction.
Planting holes shall be prepared not more than twenty four (24) hours in advance of
planting. A slow release tablet form of fertiliser is preferred, 'Agriform' or equivalent. Apply
tablets at the rate and depth of the manufacturer's recommendation. Water plants in
containers immediately prior to planting.
Plant to approved set out and detail, refer to Planting Plan and appropriate details. Ensure
that the topsoil level of the plant root ball is 20mm below the finished surface of the soil
surrounding the hole by backfilling as required.
Where root growth has been restricted in the container, the outside roots shall be lightly
teased prior to planting. Care should be taken to ensure that roots are not exposed to drying
influences such as sun or wind.
Avoid leaving air pockets in backfill by carefully firming soil progressively. Water all plants
thoroughly after planting, and for the duration of the establishment/maintenance period, to
EDAW Aust                             Page 39                        February 2008