Natural source of phosphorus and calcium for vigorous flower and root growth. Omri listed. Registered organic input materials CDFA. Product Info: Whitney farms organic bone meal is a natural source of phosphorus and calcium and is great for amending soils for vigorous flower and root growth. Grown beautiful roses and bulbs. Helps correct phosphorus deficiencies in garden soil. Suitable for bulbs, roses, flowers, vegetables and shrubs. Contents are 100% biodegradable. History: Born in the Pacific Northwest from a pioneering passion for gardening, Whitney farms supports the hands-in-dirt dreams of independent gardeners, no matter how big or small their projects. We put a lot of love, plenty of book smarts and generations of one-with-the-earth knowledge into our soils, nutrients and solutions. Mix and match or products to create a robust ecosystem for your garden and get the most rewarding return. To hear more call 1-866-541-3114. Information regarding the contents and levels of metals in this product is available on the internet at http://www.aapfco.org/metals.htm.