What are the best methods to prevent efflorescence on sandblasted stone planters?

Efflorescence, the white powdery residue that forms on sandblasted stone planters, can be unsightly and damaging over time. To prevent it, start by sealing the stone with a high-quality penetrating sealer before use. This creates a barrier against moisture, the primary cause of efflorescence. Regularly clean your planters with a mild, pH-neutral cleaner to avoid chemical reactions that trigger salt deposits. Ensure proper drainage to prevent water from pooling inside the planter, as stagnant water exacerbates efflorescence. For existing efflorescence, gently scrub with a mixture of water and white vinegar, then rinse thoroughly. Finally, store planters in a dry, covered area during wet seasons to minimize exposure to moisture. These steps will keep your sandblasted stone planters looking pristine for years.