What are the effects of using organic fertilizers on the surface of marble planters?

Using organic fertilizers on marble planters can have both positive and negative effects. On the positive side, organic fertilizers enrich the soil with essential nutrients, promoting healthier plant growth without harsh chemicals. They also improve soil structure and microbial activity, which benefits root development. However, organic fertilizers can sometimes leave residues or stains on the marble surface, requiring regular cleaning to maintain the planter's appearance. Additionally, moisture from organic matter may accelerate weathering or discoloration of marble over time. To minimize risks, use well-composted fertilizers and avoid direct contact with the marble. Proper drainage and occasional sealing of the planter can also help preserve its longevity and aesthetic appeal.