True Organic Seabird Guano 4 LB
Best organic fertilizer for gardeners seeking robust plant and flower growth.
True Organic Seabird Guano is a highly valued organic fertilizer, perfect for promoting robust vegetative growth due to its excellent source of Phosphorous and slow-release Nitrogen. Use this product throughout your garden to encourage abundant organic fruits, flowers, vegetables, herbs, and foliage. It is suitable for both in-ground and container plants, with application recommended twice yearly in Spring and Fall. This 4lb bag provides coverage for up to 70 square feet, making it an efficient choice for dedicated organic gardeners seeking quality soil enrichment.
$12.99
Owner Satisfaction
4.5
/ 5
Category Rank
3091
/ 4425
#3091 in Fertilizers
Price vs Category Average
-79%
Below average
NPK Ratio
6120
/ --
Who it's for
- Gardeners seeking vigorous vegetative growth and strong root systems
- Organic growers prioritizing soil health and chemical-free cultivation
- Farmers needing immediate nutrient availability for rapid plant development
Who should skip it
- Indoor gardeners sensitive to strong, lingering natural odors
- Budget-conscious growers looking for lower-cost fertilizer options
- Beginners prone to over-fertilizing delicate or sensitive plants
Performance breakdown
Nutrient Density
High phosphate levels drive exceptional flower and fruit production.
Application Versatility
Works seamlessly in both container pots and traditional garden beds.
Release Efficiency
Slow-release nitrogen ensures steady growth without risking root burn.
Organic Integrity
Certified organic sourcing provides peace of mind for edible gardens.
Ease of Use
Simple twice-yearly application schedule simplifies complex garden maintenance.
Coverage Value
Efficient for small-to-medium plots but requires more for larger landscapes.
Key Specs
NPK Ratio
6-12-0
Package Weight
4 LB
Total Nitrogen (N)
6%
Available Phosphate (P2O3)
12%
Water Soluble Nitrogen
1.5%
Micronutrients
Calcium (Ca) 7%, Sulfur (S) 1%
Derived from
Seabird Guano
Coverage Area
70 sq. ft. per bag
Features
- Excellent source of slow-release Nitrogen
- Promotes abundant organic growth
- Ideal for vegetative development
- Suitable for containers and in-ground use
- Organic certification for clean gardening
- Easy application schedule
- Provides essential micronutrients
What customers say
Customers overwhelmingly praise this organic soil amendment for its exceptional efficacy, viewing it as a premium product that justifies its cost through superior results. The core theme centers on dramatic improvements in flowering and fruiting cycles, with users noting significant boosts in plant vitality and yield from small applications. It is highly valued by organic gardeners for its potent, natural source of phosphorus and nitrogen, aiding root development and bloom set. While the product delivers undeniable potency, two consistent points arise: its strong natural odor and the potential for fertilizer burn if dosage instructions are ignored. Despite these minor usage caveats, the overall sentiment is robustly positive, confirming its reputation as a top-tier choice for cultivators seeking rapid, natural performance.
Know before you buy
This product has an NPK ratio of 6-12-0. The high phosphorus content (12%) makes it particularly effective for supporting root development and flower or fruit production, while the 6% nitrogen encourages steady vegetative growth.
Yes, this fertilizer is suitable for both in-ground gardens and container plants. Because it is an organic, slow-release formula, it is a safe and effective way to provide consistent nutrients to potted plants.
For best results, apply this fertilizer twice a year—once in the spring and once in the fall. This schedule ensures your soil remains enriched throughout the primary growing seasons.
A single 4lb bag is designed to cover up to 70 square feet. It is an efficient option for small-to-medium garden beds or a collection of container plants.
Yes, in addition to nitrogen and phosphorus, this guano provides essential micronutrients including 7% calcium and 1% sulfur, which help support overall plant health and soil structure.
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