In accordance with the generally accepted principle, we see revegetation of bushland areas as a ‘last resort’. That is, a reasonable amount of time (one-two years) should have elapsed since the initial weed removal before planting is considered as a restoration option.

This recognises the fact that natural regeneration from an existing seedbank will produce a more sustainable long term result.

If no or very little natural regeneration has occurred on a site, or in areas where natural regeneration would be very unlikely to occur, that is, in areas where the soils have been severely altered (eg a fill embankment), revegetation is likely to be required.

We have found the following principles to be particularly useful when undertaking revegetation:

Assess the soils first to determine pH, clay content, drainage, etc.

Consider the use of ‘capping’ with imported soils or crushed sandstone if the underlying soil is unsuitable for planting.

Woodchip mulch (preferably with a fairly high leaf content) is almost always a good idea, to reduce weed competition, retain moisture, and ultimately to improve the soil structure.

The use of local provenance seed (eg. within the sub-catchment or within 10km of the site).

The use of canopy, midstorey, shrub and groundcover layer plants; plus the addition (if necessary), of rocks and logs to mimic a natural ecosystem.

A recognition of the importance of grasses and groundcovers in forming a sustainable ‘living mulch’. The introduction of a living mulch precludes the need for the expensive re-mulching (with woodchip mulch)of an area every six to twelve months.

Regular maintenance to ensure that the area stabilises as quickly as possible.