How do aluminum outdoor flower boxes handle exposure to gypsum-based soil amendments?
Aluminum outdoor flower boxes are popular for their durability and lightweight properties, but how do they interact with gypsum-based soil amendments? Gypsum, a common soil conditioner, can affect aluminum in different ways. While aluminum is naturally corrosion-resistant, prolonged exposure to gypsum (calcium sulfate) may accelerate oxidation if the soil becomes too acidic. However, most aluminum planters are coated or anodized, providing extra protection against chemical reactions. To ensure longevity, monitor soil pH levels and avoid excessive gypsum use. Proper drainage and occasional cleaning also help maintain aluminum flower boxes when using gypsum amendments. For best results, choose high-quality aluminum planters with protective finishes.
