Roots Organics HPK: Phosphate Rock and Langbeinite PK Support for Flower Stage
Roots Organics HPK (0-4-3) is a minimally processed liquid PK booster built around phosphate rock phosphorus and langbeinite potassium — two naturally occurring mineral sources that deliver a clean, dependable bloom boost without synthetic processing or chloride-based potassium. The 0-4-3 profile provides targeted PK supplementation when plants shift into the reproductive stage, supporting energy allocation to flower structure and fruit development.
Sizing HPK for Your Operation: 1 Quart to 1 Gallon
HPK's precise 0-4-3 NPK makes it an effective single-variable tool for raising phosphorus and potassium mid-cycle without disrupting the nitrogen ratio established by your base program. It's compatible with organic and hydroponic feeding programs in soil, coco, and recirculating systems, and integrates without precipitation or unusual pH drift. The 1-quart format suits smaller gardens and trial runs, while the 1-gallon size fits growers running consistent bloom supplementation through multi-run production cycles.
Key Features
- Phosphate Rock Phosphorus:: Biogenic phosphate source delivers bioavailable P for energy transfer, root activity, and reproductive development without synthetic chemical processing.
- Langbeinite Potassium:: Non-chloride potassium from a naturally occurring mineral source supports osmoregulation and nutrient transport without the salt burden of chloride-form alternatives.
- 0-4-3 Precision Profile:: Targeted phosphorus and potassium delivery with zero nitrogen — lets growers supplement PK exactly when bloom demand peaks without altering N ratios.
- Soil, Coco, and Hydro Compatibility:: Integrates into recirculating systems and soil feeds without precipitation or reservoir instability across a wide range of water chemistry profiles.
- Two Size Options:: 1-quart for smaller gardens and evaluation runs; 1-gallon for growers running HPK consistently through multi-run flowering programs.