Organic Crustacean Meal Fertilizer 4-0-0
Best organic soil amendment for gardeners seeking pest control and strength.
Enhance your garden with Greenway Biotech's Organic Crustacean Meal Fertilizer. Derived from kiln-dried crab and shrimp shells, this 4-0-0 NPK fertilizer provides a slow-release source of nitrogen and a significant 12% calcium content, crucial for strengthening plant cell walls. Its natural chitin content also aids in controlling soil pests like grubs and nematodes. Ideal for seedlings, flowers, and vegetables, this environmentally safe option promotes robust plant structures and vibrant foliage with minimal nutrient runoff. Apply several weeks before planting and bury in the soil for optimal results.
$24.99
Owner Satisfaction
4.6
/ 5
Category Rank
1939
/ 4425
#1939 in Fertilizers
Price vs Category Average
-59%
Below average
NPK Ratio
400
/ --
Who it's for
- Soil health enthusiasts looking to improve aeration and structure
- Organic gardeners seeking natural pest and fungal resistance
- Plant owners worried about accidental fertilizer burn
Who should skip it
- Budget-conscious growers prioritizing low-cost synthetic alternatives
- Gardeners needing a complete, all-in-one nutrient solution
- Homeowners sensitive to strong, lingering outdoor smells
Performance breakdown
Soil Amendment Efficacy
High calcium content significantly reinforces plant cell walls for structural integrity.
Pest Management
Natural chitin content provides a reliable biological defense against soil-dwelling pests.
Nutrient Release Profile
Slow-release nitrogen ensures steady, consistent feeding throughout the growing season.
Environmental Impact
Organic sourcing and minimal runoff make this a sustainable garden choice.
Application Convenience
Pulverized dust requires careful handling and advance soil preparation for success.
Foliage Vitality
Consistent nitrogen delivery promotes lush, deep green growth in diverse plants.
Key Specs
NPK Ratio
4-0-0
Guaranteed Analysis
4% Nitrogen, 12% Calcium
Weight
50 Pounds
Form
Pulverized meal/dust
Release Type
Slow-release minerals
Source Material
Crustacean shells and exoskeletons
Organic Certified
Yes
Coverage Area
Up to 500 sq ft
Features
- Strengthens plant cell walls with calcium.
- Promotes deep green foliage.
- Naturally controls soil pests.
- Slow-release nutrients for steady feeding.
- Environmentally safe with low runoff.
- Ideal for seedlings and vegetables.
What customers say
Customers consistently praise the high quality and effectiveness of this organic crustacean meal. Gardeners report significant improvements in plant vigor and soil health, often noting better yields than expected. While the initial price point is higher than synthetic options, users feel the visible, long term results provide exceptional value for money. The product is highly regarded as a foundational organic amendment that truly delivers on its promise of natural, robust growth.
Know before you buy
Chitin is a natural compound found in crustacean shells that encourages the growth of beneficial soil bacteria. These bacteria produce enzymes that break down chitin, which can weaken the exoskeletons of soil-dwelling pests like grubs and nematodes, effectively suppressing their populations.
Because this is a slow-release organic fertilizer, it needs time to break down in the soil before the nutrients become bioavailable to your plants. Burying it early ensures that the nitrogen and calcium are ready for your seedlings as soon as they begin to establish their root systems.
While it is excellent for in-ground vegetable and flower beds, it can be used in large containers as well. Just ensure you mix it thoroughly into the potting medium rather than leaving it on the surface to prevent potential odor or mold issues.
The 4-0-0 ratio indicates that the primary nutrient provided is nitrogen, but this product also delivers a significant 12% calcium content. While it is a great source for foliage growth and cell wall strength, you may need to supplement with other fertilizers if your soil tests show a deficiency in phosphorus or potassium.
Yes, because the product is a fine dust, it can be lightweight and prone to drifting in windy conditions. It is best to apply it on a calm day and incorporate it directly into the soil to minimize loss and ensure the nutrients are placed where the roots can access them.
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$25