About the Product
Green House Feeding Mineral Line Booster PK+ is a concentrated flowering additive formulated to provide phosphorus, potassium, magnesium and essential micronutrients during the reproductive stage. Its powerful 0-30-27 formulation is designed to support flower formation, density and resin production while complementing a complete Green House Feeding nutrient program.
Rather than supplying phosphorus and potassium alone, Booster PK+ includes additional magnesium and trace elements to help maintain a balanced nutrient profile. This broader formulation helps ensure that supporting elements do not become limiting factors when plants have increased phosphorus and potassium requirements during flowering.
Features & Benefits
- Highly concentrated 0-30-27 PK flowering additive
- Provides 30% available phosphate and 27% soluble potash
- Formulated to support flower formation and density
- Supports resin production during flowering
- Contains 5% magnesium to complement elevated phosphorus and potassium levels
- Provides sulfur and important trace elements
- Includes chelated iron for nutrient availability
- Designed to complement Green House Feeding base nutrients and calcium
- Highly water-soluble mineral formulation
- Suitable for professional and high-volume cultivation programs
Balanced PK Nutrition for Flowering
Flowering plants have different nutritional demands than plants in vegetative growth. Booster PK+ provides concentrated phosphorus and potassium while also supplying magnesium, sulfur and micronutrients that contribute to a balanced feeding program.
Phosphorus and potassium are important components of reproductive plant nutrition, but their availability alone does not create a complete feeding program. Green House Feeding includes additional supporting elements in Booster PK+ so plants receive a broader nutrient profile during periods of increased flowering demand.
Designed for a Complete Feeding Program
Booster PK+ is designed to be combined with the appropriate Green House Feeding base nutrient and calcium product. Used together, these components allow growers to build a more complete nutrient program that supplies the essential elements required for healthy plant development and productive flowering.
Composition & Guaranteed Analysis
N-P-K: 0-30-27
- Available Phosphate (P₂O₅): 30%
- Soluble Potash (K₂O): 27%
- Magnesium (Mg): 5%
- Sulfur (S): 9%
- Combined Sulfur (S): 9%
- Soluble Boron (B): 0.02%
- Soluble Iron (Fe): 0.1%
- Chelated Iron (Fe): 0.1%
- Molybdenum (Mo): 0.004%
Solubility & Stock Solution
- Maximum Solubility: 250 g/L of water (approximately 2.0 lb/gal)
- Recommended Stock Solution: 30 g/L of water (approximately 4 oz/gal)
How to Use
Dissolve Booster PK+ thoroughly in water and use it as part of the appropriate Green House Feeding flowering program. Because this is a highly concentrated additive, accurately measure the required amount and follow the manufacturer’s recommended feeding schedule for the crop and stage of flowering.
When preparing a concentrated stock solution, the recommended concentration is approximately 30 g/L (4 oz/gal) of water. Do not exceed the stated maximum solubility of 250 g/L (approximately 2.0 lb/gal).
Product Specifications
- Product: Green House Feeding Mineral Line Booster PK+
- Size: 25 kg (55 lbs)
- Type: Concentrated PK Flowering Additive
- N-P-K: 0-30-27
- Magnesium: 5%
- Sulfur: 9%
- Primary Stage: Flowering
- Primary Uses: Flower development, density and resin production
- Form: Water-soluble mineral nutrient
How to Use
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About the Brand
Green House Feeding (GHF) is a globally recognized plant nutrition brand developed by the team behind Green House Seed Co. Built around the philosophy of “Keep It Simple,” GHF provides highly concentrated, water-soluble powdered nutrients that deliver professional results with straightforward feeding programs. Designed for growers of all experience levels, Green House Feeding products offer reliable performance across soil, coco, and hydroponic growing systems.
Why Choose Green House Feeding?
- Simple Feeding Programs: Streamlined nutrient schedules reduce complexity while delivering optimal plant nutrition throughout the entire grow cycle.
- Highly Concentrated Formulas: Water-soluble powders require only small amounts per feeding, making them cost-effective and easy to transport.
- Long Shelf Life: Powdered nutrients remain stable over time without separating or settling, ensuring consistent quality and performance.
- Fast Dissolving: The formulas dissolve quickly in water, making them suitable for hand watering, hydroponic systems, and automated irrigation.
- Premium Quality Ingredients: Manufactured using high-quality raw materials to provide consistent nutrient availability and dependable results.
Green House Feeding Product Lines
- Mineral Nutrients: Complete powdered formulas such as Grow, Hybrids, Short Flowering, and Long Flowering, designed to match different plant growth stages and flowering times.
- Bio Nutrients: Organic products including BioGrow and BioBloom that support healthy plant development while promoting beneficial microbial activity in the growing medium.
- Specialty Additives: Products like Booster PK+, Calcium, and CalMag help optimize flowering, correct nutrient deficiencies, and support overall plant health.
Suitable Growing Systems
Green House Feeding nutrients are compatible with soil, coco coir, hydroponic systems, and soilless growing media, making them suitable for hobby growers, enthusiasts, and commercial cultivators alike.
Pro Tip
Because Green House Feeding nutrients are highly concentrated, always measure them with a digital scale for accurate dosing. Dissolve the powder completely in a small amount of water before adding it to your nutrient reservoir to ensure even mixing and maximum nutrient availability.



