
Engineer the
conditions for growth.
Custom root-zone thinking for projects where standard soil, standard media or standard nutrient programmes are not enough.
Performance starts below the surface.
Root-zone structure, drainage, oxygen, salinity, water chemistry and nutrient availability influence whether a landscape merely opens well or continues to perform.

We design the conditions for growth.
When standard growing media is not enough, SIA develops project-specific substrate strategies and nutrient programmes around species, exposure, irrigation method and water conditions.
Assess
Understand site conditions, water quality, drainage, exposure and operational constraints.
Formulate
Balance structure, retention, aeration and amendments for the intended root environment.
Establish
Set irrigation and initial nutrition around the planting and establishment period.
Tune
Adjust fertilisation or fertigation through observation, testing and plant response.
The root zone is a design material.
We select and combine materials for the performance the project requires. That can include mineral and organic components, selected amendments and biochar where appropriate.
Start with the root environment.
For difficult sites, sensitive planting or recurring performance problems, the answer often begins below the surface.