HPK (Seabird Guano & Langbeinite)


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This liquid bloom booster is ideal for hydroponics or soil! Roots Organics HPK (0-4-3) is a specially extracted natural source of phosphorus and potassium. Seabird guano, which is renowned as an unparalleled source of available natural phosphorus is combined with langbeinite — a natural source of potassium mined from ancient sea beds in the desert of the American Southwest. Aurora Innovations has taken generations of gardening experience and distilled it into a distinctive, easy-to-use liquid formula for the hobbyist and professional gardener.

Available in FOUR convenient sizes.

Mix 1 Tbsp per gallon, particularly during fruiting or flowering.

Guaranteed Analysis (0-4-3):
Available Phosphate ….. 4.0%
Soluble Potash ….. 3.0%

Feeding Schedule (PDF)
Master Feeding Schedule (PDF)

Ingredients: Seabird guano, phosphate rock and langbeinite.