Fish Bone Meal Fertilizer 4-17-0
Best organic phosphorus source for gardeners seeking vibrant blooms and roots.
Enhance your garden's vitality with Greenway Biotech's Fish Bone Meal Fertilizer. This 4-17-0 NPK formula is rich in phosphorus, promoting explosive blooms, robust root systems, and bountiful fruit. Sourced sustainably from marine by-products, it offers organic, non-GMO nutrition with essential trace minerals and amino acids. The slow-release action ensures plants receive continuous feeding for 4-6 weeks, improving soil structure and moisture retention. Ideal for vegetables, flowers, trees, and houseplants, this fertilizer provides a complete, environmentally conscious approach to achieving professional gardening results.
$19.99
Owner Satisfaction
4.6
/ 5
Category Rank
1939
/ 4425
#1939 in Fertilizers
Price vs Category Average
-68%
Below average
NPK Ratio
4170
/ --
Who it's for
- Gardeners seeking vibrant blooms and strong root systems
- Organic growers prioritizing long-term soil health and safety
- Vegetable farmers aiming to prevent blossom end rot
Who should skip it
- Growers requiring an immediate fix for nutrient deficiencies
- Pet owners concerned about attracting local wildlife
- Gardeners needing an all-in-one complete nutrient solution
Performance breakdown
Bloom Stimulation
High phosphorus content drives exceptional flower and fruit production.
Soil Enrichment
Organic composition actively improves soil structure and moisture retention over time.
Feeding Longevity
Slow-release formula provides consistent nourishment for up to six weeks.
Ingredient Purity
Sustainably sourced marine by-products ensure a clean, non-GMO nutrient profile.
Application Versatility
Granular form adapts easily to lawns, containers, and garden beds.
Nutrient Balance
Heavy phosphorus focus excels for blooms but requires supplemental potassium.
Key Specs
NPK Ratio
4-17-0
Derived From
Marine Fish Bone Meal
Release Rate
Feeds plants for 4-6 weeks
Manufacturing Location
California, USA
Certification
Registered with CDFA
Nutrient Profile
Contains 4% Nitrogen, 17% Phosphorus, trace minerals, and amino acids
Quality Assurance
Tested for heavy metals
Fertilizer Source
Organic
Features
- High phosphorus for blooms and roots
- Organic and sustainable marine sourcing
- Provides complete nutrition with trace minerals
- Slow-release feeding for 4-6 weeks
- Improves soil structure and moisture retention
- Rich in natural amino acids for growth
- Versatile for various plant types
- Non-GMO with zero synthetic additives
What customers say
Customers consistently praise the high quality and noticeable efficacy of this fish bone meal. Reviewers frequently highlight the fine powder consistency, which makes application and soil incorporation remarkably easy, addressing a common pain point with bulkier organic fertilizers. Gardeners report excellent results, specifically noting robust root systems and improved flowering, confirming its strong value proposition as a concentrated source of phosphorus. The overall consensus is that this product delivers reliable performance for serious plant enthusiasts.
Know before you buy
This ratio is heavily weighted toward phosphorus, which is essential for stimulating strong root development and encouraging vibrant, abundant blooms and fruit production. The 4% nitrogen provides a gentle boost of green growth without overwhelming the plant.
Because this is a slow-release formula, it feeds your plants consistently for 4 to 6 weeks. You should plan to reapply every month and a half during the active growing season for the best results.
Yes, it is safe for houseplants. Since it is an organic, granular fertilizer, simply work it into the top layer of the potting soil and water thoroughly to begin the nutrient release.
The most effective method for established plants is side-dressing. Gently scratch the granules into the soil around the base of the plant, being careful not to disturb the roots, and water the area well.
No, this product is derived entirely from marine fish bone meal and is free from synthetic additives and GMOs. It is also tested for heavy metals to ensure it meets high quality and safety standards.
Yes, beyond providing nutrients, the organic matter in this fish bone meal helps improve soil structure and moisture retention, creating a healthier environment for root systems to thrive.
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$20