Mixolithotrophic growth, such as algae and mold, can quickly degrade the appearance and durability of outdoor seating. To combat this, regular cleaning with a mixture of water and mild detergent is essential. Scrubbing surfaces with a stiff brush removes existing growth and prevents recurrence. Applying protective coatings, like water-repellent sealants or anti-microbial treatments, creates a barrier against moisture and organic buildup. Additionally, positioning furniture in well-ventilated, sunny areas reduces dampness, discouraging growth. For long-term prevention, consider using materials like teak or synthetic wicker, which are naturally resistant to mixolithotrophic organisms. Implementing these strategies ensures your outdoor seating remains clean and attractive for years.