What are the differences in water permeability between granite and marble outdoor planters?
When choosing outdoor planters, understanding the water permeability of materials like granite and marble is crucial for plant health. Granite is an igneous rock with low porosity, making it highly resistant to water absorption. This characteristic ensures durability and prevents cracking in freezing temperatures. Marble, a metamorphic rock, is more porous and absorbs water more readily, which can lead to faster weathering and potential damage in harsh climates. For gardeners, granite planters are ideal for retaining moisture control, while marble planters may require additional sealing to reduce water permeability. Consider these differences to select the best planter for your outdoor space.