In our last blog, we talked about soil types affecting the availability and uptake of plant nutrients. Sandy soils , which drain quickly, may not have sufficient N, P and K due to leaching, as the water rapidly leaves a sand area. Over the years rains can remove a lot of nutrients from a porous area to the garden. Regular watering is needed to establish new trees and may move materials away also, from sandy planting mix. If you could see a cross section of the soil draining, the water you are applying moves rapidly out of the sand in a more pointed, dagger like profile.