Roots Organics Seabird Guano Powder
Best natural phosphorus booster for vibrant garden and container plant growth.
Nourish your plants with Roots Organics Seabird Guano Powder, a premium, natural fertilizer. Sourced sustainably, it's rich in phosphate and calcium to promote vigorous growth and strong cell walls. This fast-acting formula is carefully sifted for easy application, making it ideal for amending garden soil or enhancing container plantings. It supports chlorophyll production, leading to healthier, more vibrant plants. Available in powder form, it's a versatile choice for vegetable gardens, flower beds, and more, contributing to overall plant vitality.
$12.94
Owner Satisfaction
4.7
/ 5
Category Rank
50
/ 4425
#50 in Fertilizers
Price vs Category Average
-79%
Below average
NPK Ratio
0.250.010.1
/ - -
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%
Features
- Excellent source of phosphate and calcium
- Fast-acting for quick results
- Habitat-friendly sourced guano
- Supports cell wall structure
- Enhances chlorophyll production
- Ideal for soil amendment
- Suitable for container gardening
- Carefully sifted for ease of use
What customers say
Roots Organics Seabird Guano is highly praised for its exceptional quality and effectiveness, especially during the flowering stage. Growers consistently report robust plant health and impressive blooms, making this powder a go to amendment. Its concentrated formula means a little goes a long way, offering excellent value. Users appreciate the natural, reliable results and how easily this organic input blends into existing soil mixes for superior performance. This amendment is a trusted choice for achieving optimal plant growth and vibrant flowering.
Know before you buy
Roots Organics Seabird Guano is an excellent source of phosphorus and calcium. It is specifically designed to promote vigorous root development, strengthen cell walls, and enhance chlorophyll production for healthier, more vibrant plants.
This is a quick-release formula, meaning the nutrients are readily available for plant uptake. You can expect to see faster results compared to slow-release organic amendments.
Yes, it is ideal for containers. The recommended application rate is 1 teaspoon per gallon of soil, and because it is carefully sifted, it mixes easily into potting media.
Yes, Roots Organics Seabird Guano is OMRI listed and certified organic. It is sourced sustainably and is free from synthetic additives.
You have three primary options: you can mix it directly into your soil before planting, use it as a top dress around established plants, or steep it in water to create a nutrient-rich compost tea.
No, this is a specialized amendment rather than a balanced all-purpose fertilizer. With an NPK of 0.25-13-0, it is heavily focused on phosphorus to support blooming and root health rather than vegetative nitrogen growth.
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