Enhance the growth of your plants with this sustainable lava rock from greenhorn amendments. Measuring 4 inches in length and 7 inches in height, this 1 gallon bag of pH balanced grow rocks is perfect for various applications including NFT System, Deep Water Culture, Drip System, Ebb-Flow System, Deep Flow Technique, and Aeroponic. Its sterile and reusable material basis of hydro/aquaponics lava rock ensures optimum drainage for your herbs, orchids, flowers, fruits, succulents, shrubs, cannabis, roses, tomatoes, bonsai, cactus, potted plants, and vegetables.

This grow rocks/stones type is also enriched with Mycorrhizal and trace elements that promote the organic growth of your plants. It does not require any presoaking and is California Prop 65 warning-free. With an MPN of 420-000-085, this lava rock is made in America and packaged in a bag. Invest in this lava rock and witness the flourishing growth of your plants.