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We investigate certain aspects of the physical mechanisms of root growth in agranular medium and how these roots adapt to changes in water distributioninduced by the presence of structural inhomogeneities in the form of solidintrusions. Physical intrusions such as a square rod added into the 2D granularmedium modify water distribution by maintaining robust capillary action,pumping water from the more saturated areas at the bottom of the cell towardsthe less saturated areas near the top of the cell while the rest of the mediumis slowly devoid of water via evaporation. This water redistribution induces`preferential tropism' of roots, guiding the roots and permitting them to growdeeper into more saturated regions in the soil. This further allows moreefficient access to available water in the deeper sections of the mediumthereby resulting to increased plant lifetime

Preferential Root Tropism Induced by Structural Inhomogeneities in 2D Wet Granular Media