Roots Organics HPK | 32oz

Guano and Langbeinite Bloom Booster, 32oz

A bloom booster built on synthetic phosphate and chloride potash isn't the fit for growers who want their flowering-stage nutrients to trace back to natural minerals and marine sources. Roots Organics HPK combines seabird guano and phosphate rock for phosphorus with langbeinite, a potassium ore mined from ancient sea beds, into a single liquid concentrate.

This 32oz bottle suits a hobbyist or a grower testing HPK on a smaller number of plants before stepping up to the case-packed gallon size.

Key Features & Benefits

• Seabird guano and phosphate rock — an unrefined natural source of available phosphorus rather than a synthetic phosphate salt.
• Langbeinite potassium source — potassium mined from ancient sea beds in the American Southwest rather than a chloride-based potash.
• Minimally processed — kept close to its raw ingredient state so the naturally occurring compounds in guano, rock, and langbeinite stay intact.
• Liquid bloom booster format — an easy-to-dose liquid rather than a raw mineral that needs separate dissolving or blending.

Who Should Use HPK

Growers already running a base nutrient program who want a natural phosphorus-and-potassium boost during flowering, rather than a synthetic bloom booster, will find HPK suited to that role.

About Roots Organics

HPK is formulated by Aurora Innovations, Inc. under its Roots Organics line in Eugene, Oregon, pairing guano-and-rock phosphorus with langbeinite-derived potassium instead of a synthetic bloom-booster salt.

Frequently Asked Questions

What is HPK made from?

HPK combines seabird guano and phosphate rock for phosphorus with langbeinite, a natural potassium ore, rather than using synthetic phosphate and potash salts. All three inputs are distilled into a single liquid concentrate.

What is langbeinite?

Langbeinite is a naturally occurring mineral mined from ancient sea beds in the American Southwest that supplies potassium along with some magnesium and sulfur. HPK uses it as its potassium source instead of a chloride-based potash.

How processed is HPK?

HPK is minimally processed to preserve the synergistic qualities of its guano, phosphate rock, and langbeinite inputs. Heavier refining tends to strip out some of the trace compounds those raw materials carry.

When should I use HPK?

Use it during flowering as a bloom-stage booster layered onto your existing base nutrient program. It's formulated to supply extra phosphorus and potassium during the window when flower and fruit development draws most heavily on those two nutrients.

Is HPK suited to hobby growers?

Yes, the liquid concentrate format works for a hobbyist dosing a small reservoir. It also scales up to a larger operation running the case-packed 1gal size across more plants.