What is a potential hazard of granules or soil drenches in interiorscape?

Residues in the planting medium is a significant potential hazard of using granules or soil drenches in interiorscape environments. When these products are applied, they can leave behind chemical residues that may accumulate in the soil over time. This accumulation can lead to potential toxicity for the plants and may impact the overall health of the planting medium. Moreover, residues can also affect beneficial soil microorganisms, potentially disrupting the ecosystem within the soil that plants rely on for nutrient uptake and growth.

In contrast, high evaporation rates can impact the effectiveness of soil drenches but are not primarily a hazard related to granules. Ineffective application may lead to suboptimal results but does not directly manifest as a hazard. Low absorption by plants can occur, but it generally does not pose a hazard in the same way that toxic residues can, as it simply reflects the plants' limited ability to utilize the applied substances. Thus, the concern about residues highlights the importance of monitoring and managing chemical applications in interiorscapes to maintain plant health and avoid potential negative impacts.