Leca is a growing medium that is made of absorptive clay. Details: - You will receive a bag of Leca with 3 cups worth inside. Benefits: - Can be mixed with another growing medium (like soil) or by itself. - Provides the ability for house plants to receive the oxygen & water they need on their own schedules. - Reduces the risk for bacterial infections that can affect your plants. - Is great for hydroponics! - Not to mention a lot of different houseplants thrive in this medium, especially hoyas. Remember: - Rinse before using! - Leca does not provide nutrients like soil does, so you will need to add your own nutrients. ** If you are needing nutrients as well, please check out our instant plant food that we stock. We also will be stocking more nutrients to the shop soon as well. **