• Wear gloves when handling bone meal
• Avoid inhaling dust — use in well-ventilated areas or wear a dust mask
• Wash hands thoroughly after handling

• Store in a cool, dry place in a sealed container
• Keep out of direct sunlight and away from heat sources
• Keep away from children and pets — the smell can attract animals
• Bone meal can absorb moisture; reseal bags tightly after use

• Always mix bone meal thoroughly into soil — surface application attracts animals
• Water in well after application to help incorporate and reduce scent
• Consider using in fenced areas if pets or wildlife are a concern
• Do not exceed recommended application rates — phosphorus can accumulate in soil
• Most effective at soil pH ≤7.0; phosphorus becomes less available in alkaline soils
• Check soil test results before reapplying — phosphorus builds up over time

• Eye contact: Flush with clean water for 15 minutes. Seek medical attention if irritation persists
• Skin contact: Wash affected area with soap and water
• Ingestion: Do not induce vomiting. Contact Poison Control (1-800-222-1222) or seek medical attention
• Inhalation: Move to fresh air. Seek medical attention if symptoms persist

Refer to the Safety Data Sheet (SDS) in the Documents section for complete safety information.

Bone meal excels at promoting root development, flowering, and fruiting. It's particularly well-suited for bulbs (tulips, daffodils), transplants, root vegetables, and flowering plants like roses. The high available phosphate (P₂O₅) content (15%) can trigger blooming while calcium (24%) strengthens cell walls and may help prevent disorders like blossom end rot in tomatoes. For a deeper look at why phosphorus matters, see our article on The Function of Phosphorus in Plants.

Bone meal is a slow-release fertilizer that continues feeding plants for 3–4 months. One application at planting typically lasts an entire growing season. The nutrients become available gradually as soil microorganisms break down the organic material. Bone meal works faster in warm soils (≥50°F) with active microbial life. Learn more about how soil microbes affect nutrient release.

The risk of burn is low when bone meal is used as directed. Its slow-release nature provides gentle, sustained nutrition. However, excessive amounts can raise phosphorus levels too high, potentially interfering with micronutrient uptake, so follow recommended rates and consider soil testing before each growing season.

Bone meal can be an excellent addition for tomatoes. The available phosphate (P₂O₅) supports strong root systems and fruit development, while the 24% calcium content may help prevent blossom end rot. Apply 2 tablespoons in each planting hole at transplant time. For a complete tomato feeding program, see our guide to Best Fertilizers for Tomatoes.

Apply bone meal at planting time for best results. Mix it into the soil before planting or add to planting holes. For established plants, work it into the top 2 inches of soil in early spring as growth begins. Fall application works well for spring bulbs. For more on soil preparation timing, see The Organic Gardener's Guide to Soil Preparation.

Yes, the smell can attract dogs and wildlife. Always mix bone meal thoroughly into the soil and water in well after application. Store in sealed containers and consider using it in fenced areas if animals are a concern. Do not leave bone meal on the soil surface.

Bone meal has minimal effect on soil pH when used at recommended rates. However, the 24% calcium content can slightly raise pH with large or repeated applications. If you need calcium without raising pH, consider Gypsum (Calcium Sulfate) as a pH-neutral calcium source. For a broader look at calcium sources, see our article on Best Calcium Fertilizers.

Bone meal has a mild, earthy scent that is noticeable when handling but much less pungent than blood meal or fish-based fertilizers. The smell fades quickly once worked into soil and watered in. Store in a sealed container to minimize odor.

Bone meal is generally safe when incorporated into soil as directed. However, dogs in particular may be attracted to the smell and could dig it up or consume it directly from the bag. Large quantities consumed directly can cause digestive issues. Always mix bone meal into soil, water it in, and store bags out of reach of pets.

Bone meal pairs well with most organic and conventional fertilizers. For a complete organic program, combine with Blood Meal 13-0-0 for nitrogen and Potassium Sulfate 0-0-53 for potassium. Learn more in our guide to Organic vs Synthetic Fertilizer: Key Differences and Tips.

• Sourced from 100% organic, non-GMO bovine bone meal
• Consistent particle size for even application
• Tested for heavy metals — results consistently well below required limits
• Packaged at our facility in Madera, California, USA

Not satisfied with your purchase? Contact us within 90 days for a full refund or replacement. We stand behind every product in our collection.

• Bone meal is a byproduct of the beef industry — using it reduces waste and returns nutrients to the soil
• Slow-release formula reduces phosphorus runoff compared to fast-release synthetics
• No unnecessary fillers or synthetic additives

Family-owned since 1989, Greenway Biotech has been helping gardeners grow healthier plants for over 35 years. We manufacture and package our products at our facility in Madera, California — quality you can trace from source to shelf.

Our gardening experts are available to answer your questions about application rates, timing, and compatibility with other fertilizers. Reach us at questions@greenwaybiotech.com.