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Is granite resistant to chemical fertilizers in landscape planter boxes?
Granite is widely admired for its durability and aesthetic appeal in landscape design, particularly in planter boxes. However, a common concern among gardeners and landscapers is whether granite can withstand exposure to chemical fertilizers.
Granite is a natural stone composed primarily of quartz, feldspar, and mica, making it highly resistant to most chemical reactions. Chemical fertilizers, which often contain salts and acids, typically do not significantly degrade granite. The stone's dense structure prevents deep penetration of these substances, minimizing the risk of erosion or discoloration.
That said, prolonged or excessive exposure to highly acidic fertilizers (e.g., ammonium-based formulas) may cause slight surface etching over time. To maintain granite's integrity, it’s advisable to rinse planter boxes periodically and avoid letting fertilizer residues accumulate. Sealing granite annually can also enhance its resistance.
In summary, granite is generally resistant to chemical fertilizers, making it a reliable choice for landscape planter boxes. Proper care ensures its longevity and pristine appearance.
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