Roots Organics Seabird Guano Powder
Best natural phosphorus booster for vibrant garden and container plant growth.
This potent, sustainably sourced powder is the secret weapon for gardeners chasing explosive blooms and structural integrity. It requires a bit more hands-on mixing than liquid alternatives, but the surge in chlorophyll and root vitality makes the extra effort well worth it.
$24.49
at
Custom Hydro
Who it's for
- Botanists seeking comprehensive nutrient profiles for plant vitality
- Gardeners aiming for maximum flower and fruit yields
- Organic growers prioritizing soil health and microbial activity
Who should skip it
- Hydroponic users relying on automated drip irrigation systems
- Indoor growers sensitive to strong, lingering odors
- Budget-conscious gardeners managing large-scale operations
Performance breakdown
Bioavailability
Quick-release formula ensures plants access essential nutrients almost immediately.
Ease of Handling
Carefully sifted powder minimizes dust and ensures consistent, clump-free distribution.
Organic Integrity
OMRI listing guarantees a clean, sustainably sourced input for organic gardens.
Structural Support
Significant calcium levels noticeably improve cell wall strength and plant rigidity.
Nutrient Density
High phosphorus and calcium content drives exceptional root and bloom development.
Application Versatility
Easily integrates into soil, top dressing, or custom compost tea blends.
Key Specs
NPK Ratio
0.25 - 0.01 - 0.1
Secondary Nutrients
20% Calcium, Magnesium
Formulations Available
Granular and Powder
Application Rate (Garden)
4 lbs per 100 square feet
Application Rate (Container)
1 tsp per 1 gallon of soil
Fertilizer Source
Organic, Natural
Nitrogen Percentage
0.25%
Phosphorus Percentage
13.0%
Potassium Percentage
0.0%
Organic Certified
Yes
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