How does stainless steel compare to aluminum for outdoor flower pot longevity?

When choosing flower pots for outdoor use, stainless steel and aluminum are two popular metal options due to their durability and modern aesthetic. However, their longevity differs significantly under outdoor conditions.

Stainless steel is highly resistant to rust and corrosion, making it ideal for wet or humid climates. Its strength ensures it won’t dent easily, but it’s heavier and more expensive than aluminum.

Aluminum is lightweight and affordable but prone to oxidation over time, especially in salty or acidic environments. While anodized aluminum offers better protection, it may still degrade faster than stainless steel.

For long-term outdoor use, stainless steel is the superior choice, though aluminum works well for temporary or sheltered placements. Consider climate, budget, and maintenance when deciding between the two.