price per unit: gram & pound

Fossilized Seabird Guano

Fuel your flowers and fruits with Phos Blossom, Paonia Soil Co.’s powerful organic source of phosphorus.

Phosphorus is one of the essential macronutrients for plants, playing a key role in root development, bloom production, and fruit quality. Our Phos Blossom blend is made from fossilized seabird guano, delivering a potent, slow-release 0-11-0 nutrient profile that supports thriving plants from the roots up—naturally.

Whether you’re growing in super soil or looking to boost performance during the flowering phase, Phos Blossom provides a clean, sustainable solution.

How to Use Phos Blossom

Application rates vary depending on pot size. A good place to start is:

• 1 teaspoon per gallon of soil
• Top dress at the beginning of flowering, and again two weeks later if needed.

Pro tip: Pair Phos Blossom with our Dynamic Dressing compost for maximum microbial synergy and nutrient availability.