Seabird guano fertilizer is a natural organic fertilizer made from seabird droppings, rich in nitrogen, phosphorus, calcium, and other nutrients, suitable for gardening, agriculture, and more.

It contains high levels of nitrogen (N), phosphorus (P), potassium (K), and calcium (Ca). A typical NPK ratio is 0-10-0, with some products containing 8% calcium and 10% phosphate.

It promotes explosive vegetative growth, enhances root development, improves nutrient uptake, and boosts flowering/fruiting quality, especially for plants requiring phosphorus and calcium.

It works for vegetables, fruits, herbs, flowers, vines, trees, shrubs, as well as container and raised-bed gardening.

Dilute according to product instructions and apply to soil or mix into growing media. Adjust dosage based on plant type to avoid over-fertilization.

Yes, it is a natural organic fertilizer compliant with organic standards. Some products are classified as “low-analysis fertilizer” (e.g., in Mississippi).

Certain formulations use specialized processes to convert nitrogen into a slow-release form, extending nutrient availability and reducing waste (e.g., products with 4.5% slow-release nitrogen).

High phosphorus benefits phosphorus-deficient soils but should be used cautiously in phosphorus-rich soils. Soil testing is recommended beforehand.

Calcium strengthens plant cell structures, supports healthy growth, and improves stress resistance. Some products contain up to 20% calcium.

Visit the Association of American Plant Food Control Officials (AAPFCO) website to check detailed metal content data for specific products.