This is an ornate pot topping to give you a decorative finish to your plant. Hydroleca granules have a honeycomb like centre with a smooth surface that holds water and releases it slowly to the roots of the plant, when the root requires it. It is both decorative and practical.
A good way to make your pots more decorative
Decorative pot topper for indoor and outdoor use
Granules absorb water and slowly release it
Clay granules for creating a beneficial microclimate