Site is assessment is achieved by;

• digging a soil profile
• assessing the water supply
• soil fertility tests
• observing the performance of plants on a similar soil

Smart classes sites into three categories:

• High potential sites: Deep (> 1 m), fertile soils, good water supply, high nutrient levels.
  These require low density planting (< 3000 plants/ha) and complex trellis systems, such as RT2T & GDC
• Medium potential sites: Soils 0.5 – 1m deep, adequate water supply and average fertility
  These require average plant densities (3000 – 5000 plants/ha) and systems such as Lyre, Scott-Henry and large VSP
• Low potential sites: soils less than 0.5 m deep, poor water availability during the growing season and low fertility.
  High-density (> 5000 plants/ha) VSP systems can be used on these sites.