Landscape Technical Specification - OPW14/0197

Doonella – Stage C
14.1.4 STAKES AND GUYS

Adjust and/or replace stakes and ties where required. Remove staking and guying when instructed by the
Superintendent

Frequency: monthly

14.1.5 PRUNING

The design character of planting areas determines the intensity of the pruning program and recognised
pruning practices for each species. Heavy pruning prior to public events and the like may be required at
the direction of the Manager.

In the event of major pruning or tree surgery a qualified Horticulturist or tree surgeon shall undertake these
works.

In general, shrubs and trees will be tip pruned to ensure a strong, sound form and dense, bushy
appearance. Removal of overhanging branches or foliage that prevents proper function of a space, e.g.
pathways, seating areas, etc shall be implemented.

A thinning out pruning practice will be implemented to remove plants that are in decline, die or inhibit the
growth of surrounding plants.

All prunings and other debris shall be disposed of off site.

Tree Surgery: Tree surgery work required to maintain trees shall be carried out by a qualified horticulturist
or tradesman skilled in arboricultural techniques, in a safe and if necessary, progressive manner and
subject to prior approval.

Remove dead and decayed wood or limbs that have been broken or damaged. Make all cuts into live
wood. If the trees show signs of deterioration after the work has been done, carry out a program of feeding
or soil amelioration such as soil aeration, irrigation or incorporation of organic material.

Avoid damage to trees being treated or to nearby trees and surroundings. Provide bracing as necessary
before cutting to prevent uncontrolled breakages and damage to surroundings.

Remove all pruning, branches, debris, etc. from site. If the Manager deems the material suitable for
mechanical chipping, this operation may be approved.

Apply a fungicidal wound dressing (Colgraft or equal) to cut surfaces or approved horticultural practice,
immediately after cutting to prevent incursion or rot or disease.

Maintain shrubs and groundcovers in the forms intended to maintain the designed planting layering /
structure as follows:

Frequency: weekly.



14.1.6 MULCHED SURFACES

Organic Mulch: Mulched surfaces are to be kept clean and tidy and free of any deleterious material and
foreign matter.

Reinstate depths to a uniform level of 100mm with organic mulch equal to medium grade hoop pine bark
mulch, free of any wood material impregnated with CCA or similar toxic treatment.

Frequency: monthly

Sugarcane Mulch: Sugarcane mulch to base of planted bio-retention swales to be kept free of any
deleterious material and foreign matter. Top-up after storm events or as necessary.




AECOM                                         3