What are the best wood treatments for teak outdoor tree boxes in high-rainfall areas?

Teak is a durable hardwood, but outdoor tree boxes in high-rainfall areas need extra protection to prevent moisture damage. The best treatments include high-quality teak oil, marine-grade sealants, and UV-resistant finishes. Teak oil nourishes the wood while enhancing its natural resistance to water. Marine-grade sealants provide a waterproof barrier, ideal for heavy rain. UV-resistant finishes prevent sun damage and fading. Regular maintenance, like cleaning and reapplying treatments annually, ensures long-lasting performance. Choose products specifically designed for teak to maintain its beauty and durability in wet climates.