Summary: Ideal Drainage: These black lava rocks are natural and organic, ideal for pots without drainage holes. They help prevent root rot by absorbing and slowly releasing excess water back to the plant. Packed: The 2.8LB black lava rocks are well packed for easy use. You can portion what you need, seal it back for storage, and prevent moisture. Professional Formulation: Made with a professional formulation, these lava rocks provide good drainage and necessary nutrition for plant growth. Ideal for succulent enthusiasts. Multi Usage: Besides being a soil additive or top dressing for bonsai, these lava rocks can also be used for ashtrays, garden soil amendment, and diffusing essential oils after cleaning. Size: Pieces are approximately 3 – 6 mm, suitable for various uses in gardening and aromatherapy.
