The method Rinse new Leca thoroughly to remove dust, then soak it before use. I would use it with plants that enjoy consistent moisture, such as pothos, philodendron or peace lilies. Find a tall pot or vase without drainage holes, fill with Leca and top up with water and low-concentration feed. Add your plant with the roots above the waterline, not submerged. Flush through with water every few weeks to avoid salt buildup.