Organic Coconut Coir Brick (1.4lb) - Water Saving Coco Fiber Growing Medium for Potting Mix, Seedlings, Worm Bedding and Hydroponics Helps save water and keep the moisture in your soil. Natural and sustainable alternative to peat moss, rockwood or perlite. Maintains porosity and air circulation while improving aeration and drainage of compacted soil. Indoor or outdoor, your plants will love it. Environmentally friendly, the husk fibers from coconuts can be used in landscaping, herb gardens, individual pots, greenhouses, vertical gardens, grow bags, garden beds, terrariums or container gardens. A perfect growing medium to start seeds or roots in a pot or planter. Free from weed, sand, pathogens, bacteria, fungicide, and pests. Each brick is pH balanced (range 5.4 to 6.8), low in natural salts and virtually odorless. Ideal for healthy root development. Perfect for worm farms and red wigglers  makes excellent bedding material for any worm farm, from professional to home diy farming. Mixes well with compost. Delivers excellent growth for all types of plants including cactus, orchid, roses, bonsai, roses, mushrooms, potato and hydroponics. Easy to store and use bricks. Bricks are approximately 1.4 pounds (22.4 ounces), nearly double that of some competitors while still maintaining a small form so no lugging around heavy blocks. Expands 8 to 10 times to make over 2 gallons of growing medium. Typical use is 2 parts soil to 1 part coir. Instructions included.