What climate conditions accelerate rot in untreated cedar outdoor planters?

Untreated cedar outdoor planters are popular for their natural beauty and durability, but certain climate conditions can speed up rot and decay. High humidity and constant moisture are the primary culprits, as they create an ideal environment for fungal growth and wood degradation. Areas with frequent rainfall or poor drainage exacerbate the problem by keeping the wood damp for extended periods.

Temperature fluctuations also play a role, as repeated cycles of wet and dry conditions cause the wood to expand and contract, leading to cracks that trap moisture. Additionally, prolonged exposure to direct sunlight can break down the wood’s natural resins, reducing its resistance to rot.

To prolong the life of untreated cedar planters, consider placing them in well-ventilated areas, using protective sealants, or choosing rot-resistant alternatives for particularly harsh climates. Understanding these factors helps gardeners make informed decisions about cedar planter care.