How to prevent algae growth inside stainless steel outdoor planters?

Algae growth inside stainless steel outdoor planters can be unsightly and harmful to plants. To prevent this, follow these simple steps:

1. Ensure Proper Drainage: Stagnant water promotes algae. Use planters with drainage holes and avoid overwatering.

2. Clean Regularly: Wipe the interior with a mild bleach solution (1 part bleach to 9 parts water) monthly to kill algae spores.

3. Use a Liner: Insert a plastic or fabric liner to create a barrier between the soil and metal, reducing moisture contact.

4. Avoid Over-Fertilizing: Excess nutrients encourage algae. Use slow-release fertilizers and follow recommended doses.

5. Place in Sunlight: Algae thrive in shade. Position planters in areas with adequate sunlight to inhibit growth.

By implementing these practices, you can keep your stainless steel planters algae-free and maintain a healthy garden.