Gardening Clay Pebbles Keramzyt 8-16 mm Gardening keramzyt is a lightweight aggregate made by firing clay, ideal for use in both garden beds and container planting, such as pots or balcony boxes. By incorporating keramzyt into your planting mix, you provide plants with optimal growing conditions. It helps to aerate the soil, allowing oxygen to reach the roots, and maintains a consistent soil temperature and moisture level. Key Properties: Resistant to discoloration Weather-resistant: withstands rain and wind Attractive appearance Promotes healthy plant growth Natural product