Wicked Organic Blood Meal Guide
- Old Cobblers Farm
- Jul 29
- 7 min read
Blood Meal 13-0-0 is a potent, high-nitrogen organic fertilizer derived from dried animal blood, offering a robust solution for gardeners seeking to boost plant growth, enhance soil fertility, and promote lush foliage in nitrogen-loving crops. Sourced from livestock byproducts, this natural soil amendment is a staple in organic gardening and sustainable agriculture, delivering rapid nitrogen release to support vigorous vegetative growth. This guide explores its composition, applications, benefits, and environmental considerations, optimized with key terms like organic fertilizer, nitrogen boost, soil health, and plant vigor.
How to Apply Blood Meal 13-0-0
Proper application of Blood Meal 13-0-0 ensures effective nitrogen delivery while minimizing risks like nutrient burn or wildlife attraction. Follow these detailed methods for various gardening scenarios:
Garden Beds:
Preparation: Before planting, apply 2–3 lbs per 100 sq ft, evenly broadcasting over the soil surface.
Incorporation: Mix into the top 4–6 inches of soil using a rake or tiller to ensure nitrogen reaches the root zone and reduce odor exposure.
Watering: Water thoroughly after application to activate nutrient release and minimize scent, which may attract animals.
Timing: Apply at planting or early in the growing season to support vegetative growth.
Individual Plants:
Application: Sprinkle 1–2 tbsp around the base of each plant, keeping it 2–3 inches from stems to avoid burn.
Integration: Lightly work into soil with a hand tool and water generously to facilitate nitrogen uptake.
Frequency: Reapply every 6–8 weeks during the growing season, guided by plant needs and soil tests.
Lawns:
Application: Spread 10 lbs per 1,000 sq ft using a broadcast spreader for even coverage.
Follow-Up: Water well to incorporate into soil and reduce odor, ensuring safe use in open areas.
Timing: Apply in early spring for greening or mid-summer to recover stressed turf.
Potted Plants:
Mixing: Blend 1 tsp per 4-inch pot diameter into potting soil before planting.
Top Dressing: For established plants, sprinkle 1/2 tsp per pot and water in, avoiding direct contact with foliage.
Frequency: Reapply every 6–8 weeks, monitoring for signs of over-fertilization.
Compost:
Enrichment: Add 1–2 lbs per cubic yard to accelerate decomposition by balancing carbon-to-nitrogen ratios.
Mixing: Blend thoroughly during compost turning to ensure even distribution.
Use: Apply enriched compost to garden beds or as mulch for sustained nitrogen release.
Best Practices:
Conduct a soil test to confirm nitrogen deficiencies and tailor application rates.
Wear gloves and a mask to avoid inhaling dust or direct contact with skin.
Incorporate into soil to prevent wildlife attraction (e.g., dogs, raccoons) due to its strong odor.
Avoid over-application to prevent nitrogen burn, which can damage plants.
Apply before light watering, not heavy rain, to minimize runoff risks.
Composition
Blood Meal 13-0-0 is crafted from dried and powdered animal blood, primarily sourced from cattle or other livestock in the meatpacking industry. Its 13% nitrogen content (indicated by the 13-0-0 NPK ratio) makes it a powerful organic fertilizer for promoting lush foliage and vegetative growth. The product contains negligible amounts of phosphorus and potassium, focusing solely on nitrogen delivery. Trace amounts of micronutrients like iron or zinc may be present due to its organic nature, but these are not significant contributors. The drying and powdering process preserves its natural composition, ensuring it remains free of synthetic additives and aligns with organic gardening standards.
Organic and OMRI Status
Blood Meal 13-0-0 is a natural organic fertilizer derived from animal byproducts, making it suitable for organic gardening. When sourced from livestock raised without prohibited substances (e.g., synthetic hormones or antibiotics), it complies with USDA National Organic Program (NOP) standards. Many brands are OMRI-listed, confirming their approval for certified organic production. To verify OMRI status, check the product packaging for the OMRI seal or consult the Organic Materials Review Institute’s online database. This certification ensures Blood Meal meets stringent organic standards, supporting sustainable agriculture and eco-friendly gardening.
Nutrient Profile
Blood Meal 13-0-0 has an NPK ratio of 13-0-0, delivering 13% nitrogen with no significant phosphorus or potassium. Nitrogen is critical for chlorophyll production, promoting lush green foliage and vigorous vegetative growth. It contains minimal secondary nutrients (calcium, magnesium, sulfur) and trace amounts of micronutrients (e.g., iron, zinc), but its primary role is as a nitrogen-rich fertilizer. For balanced nutrition, pair with amendments like bone meal (phosphorus) or potash (potassium) based on soil test results, ensuring comprehensive plant nutrition in organic farming systems.
Form and Processing
Blood Meal 13-0-0 is typically a fine powder, derived from dried animal blood processed into a form that facilitates easy application and rapid nutrient release. The blood is collected from slaughterhouses, dried at high temperatures to eliminate pathogens, and ground into a uniform powder. This minimal processing ensures it remains a natural, synthetic-free product, aligning with organic gardening principles. The powder form allows quick integration into soil, delivering nitrogen efficiently to plant roots.
Uses
Blood Meal 13-0-0 is a versatile organic fertilizer with multiple applications:
Leafy Growth: Promotes vigorous foliage in nitrogen-hungry plants, ideal for leafy greens and ornamentals.
Nitrogen Deficiency Correction: Addresses yellowing leaves or stunted growth caused by low nitrogen levels.
Soil Fertility: Enhances soil nutrient content, supporting long-term soil health.
Compost Activator: Accelerates decomposition in compost piles by boosting nitrogen levels.
Pest Deterrent: Its strong odor repels animals like deer, rabbits, and rodents, protecting garden beds.
Its rapid nitrogen release makes it a go-to for organic gardeners seeking quick results in vegetable gardens, lawns, and ornamental landscapes.
Best Plants and Crops
Blood Meal 13-0-0 excels for plants with high nitrogen demands:
Leafy Greens: Lettuce, spinach, kale, Swiss chard, and arugula thrive with enhanced foliage growth.
Brassicas: Broccoli, cabbage, cauliflower, and Brussels sprouts benefit from nitrogen during vegetative stages.
Corn: Supports strong stalks and leaves, critical for high yields in this heavy feeder.
Alliums: Onions and garlic develop robust foliage and bulbs with nitrogen supplementation.
Tomatoes/Peppers: Boosts early vegetative growth, but use sparingly during fruiting to avoid excessive foliage.
Lawns: Promotes lush, green turf, ideal for spring greening or stress recovery.
Roses/Ornamentals: Enhances foliage for vibrant displays, but balance with phosphorus for flowering.
Suitability
Blood Meal 13-0-0 is adaptable for:
Containers: Provides a nitrogen boost in potting mixes, but use sparingly to avoid nutrient buildup in confined soils.
Raised Beds: Enhances fertility for nitrogen-loving crops, supporting intensive gardening.
Field Crops: Boosts growth in large-scale crops like corn or leafy vegetables, guided by soil tests for balanced nutrition.
Plant Growth Benefits
Blood Meal 13-0-0 offers significant advantages for plant vigor and soil health:
Enhanced Foliage: High nitrogen content drives chlorophyll production, resulting in lush, green leaves.
Improved Photosynthesis: Supports energy production for robust growth and development.
Rapid Vegetative Growth: Accelerates leaf and stem development, ideal for early-season establishment.
Soil Enrichment: Contributes organic matter, fostering microbial activity and long-term fertility.
Pest Deterrence: Odor repels deer, rabbits, and rodents, protecting crops naturally.
Nitrogen Deficiency Correction: Quickly addresses yellowing leaves and stunted growth, restoring plant health.
Soil and Environmental Impacts
Soil Structure: Indirectly improves via organic matter addition and enhanced microbial activity, but not a primary structural amendment.
Water Retention: Minimal direct impact; pair with compost or manure for improved moisture retention.
Nutrient Holding Capacity: Limited effect on cation exchange capacity; combine with organic matter for better nutrient retention.
Microbial Life: Nitrogen supports beneficial microbes, enhancing nutrient cycling and soil vitality.
pH Buffering: Slightly acidic, but minimal pH impact; monitor with soil tests and adjust with lime if needed.
Runoff/Leaching: Fast-release nitrogen poses a risk of runoff if over-applied; incorporate into soil and avoid application before heavy rain.
Safety and Environmental Considerations
Safety for Pets and Children
Blood Meal 13-0-0 is non-toxic but requires precautions:
Application: Wear gloves and a mask to avoid inhaling dust; incorporate into soil to reduce odor and wildlife attraction.
Access: Keep pets (especially dogs) and children away from treated areas until watered in, as the scent may attract animals or cause minor ingestion risks.
Storage: Store in a sealed, dry container, out of reach and away from food or water sources.
Ingestion: Avoid consumption; monitor for gastrointestinal upset if ingested and consult a veterinarian or doctor if needed.
Environmental Risks
Runoff: Excessive nitrogen can leach into waterways, contributing to algal blooms and water pollution; apply conservatively.
Soil Acidification: Slight acidification possible with heavy use; monitor pH and balance with lime if necessary.
Wildlife Attraction: Odor may attract animals, disrupting gardens; incorporate thoroughly to minimize.
Sustainability: Sourced as a byproduct, reducing waste, but ensure ethical sourcing from reputable suppliers.
Storage and Shelf Life
Storage: Store in a cool, dry, well-ventilated area in a tightly sealed container to prevent moisture absorption, clumping, or odor release.
Shelf Life: Lasts 2–3 years or more if stored properly, maintaining efficacy as a nitrogen fertilizer.
Speed of Action: Nitrogen release begins within 1–2 weeks, with effects lasting 6–8 weeks, depending on soil conditions and moisture.
Additional Details
Odor: Strong, metallic, meat-like scent; incorporate into soil to minimize and avoid wildlife attraction.
Edible Plants: Safe for vegetables and herbs when applied per guidelines, enhancing nutritional quality.
Sourcing: Derived from slaughterhouse byproducts (e.g., cattle, pigs) in the USA; verify supplier for ethical practices.
Packaging: Typically sold in bags or boxes (e.g., 5, 10, or 50 lbs) for easy handling in organic gardening.
Conclusion
Blood Meal 13-0-0 is a dynamic organic fertilizer, delivering a high-nitrogen boost to promote lush foliage, correct deficiencies, and enhance soil health. Ideal for leafy greens, brassicas, corn, and lawns, it supports organic gardening and sustainable agriculture when applied correctly. By following precise application methods, monitoring soil conditions, and taking safety precautions, gardeners can harness its benefits while minimizing environmental risks, fostering vibrant plants and thriving soil ecosystems.
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