What are the effects of hard water stains on polished granite outdoor planters?

Hard water stains can significantly impact the appearance and longevity of polished granite outdoor planters. These stains occur when mineral-rich water evaporates, leaving behind white or cloudy deposits on the granite surface. Over time, these deposits can dull the polished finish, making the planter look aged and neglected. If left untreated, hard water stains may even etch the granite, causing permanent damage to its smooth texture.

To prevent this issue, regularly wipe down your granite planters with a soft cloth and use distilled water for irrigation. For existing stains, a mixture of mild dish soap and warm water can help, while stubborn deposits may require a specialized stone cleaner. Avoid acidic solutions like vinegar, as they can further harm the granite. By addressing hard water stains promptly, you can maintain the elegance and durability of your polished granite planters for years to come.