What maintenance practices are recommended for stone outdoor planters to prevent algae growth?

Stone outdoor planters add elegance to any garden, but algae growth can mar their beauty. To prevent algae, follow these maintenance practices:

1. Regular Cleaning: Scrub planters with a stiff brush and mild detergent every few weeks to remove dirt and organic matter that promote algae.

2. Proper Drainage: Ensure drainage holes are clear to avoid water stagnation, which encourages algae. Elevate planters slightly for better airflow.

3. Sunlight Exposure: Place planters in sunny spots, as algae thrive in shade. Rotate them occasionally for even light distribution.

4. Use Vinegar or Bleach Solution: For stubborn algae, mix equal parts water and white vinegar or a diluted bleach solution (1:10 ratio) to scrub the surface. Rinse thoroughly afterward.

5. Seal the Stone: Apply a stone sealer to create a protective barrier against moisture and algae. Reapply annually for best results.

By following these steps, you can maintain the beauty of your stone planters and keep algae at bay.