GreenPlanet PK Spike – High-Strength PK Booster for Bigger Flowers & Superior Ripening

GreenPlanet PK Spike is a premium phosphorus and potassium bloom enhancer designed to maximise flower size, density and crop quality during the peak flowering period. Derived from multiple high-quality sources of phosphorus (P)and potassium (K), PK Spike provides the concentrated nutrition plants require when their demand for flowering nutrients is at its highest. Formulated with over 25% more phosphorus and potassium than many leading competitors, PK Spike helps support heavier flowers, improved ripening and greater overall yields.

As plants enter the middle stages of flowering, their nutritional requirements shift from vegetative growth towards flower expansion, carbohydrate production and reproductive development. GreenPlanet PK Spike supplies highly available phosphorus and potassium to support these critical processes without unnecessary filler ingredients. The concentrated formulation allows growers to achieve excellent results at application rates of up to 1mL per litre, making it both effective and economical.

Phosphorus plays an essential role in energy transfer, root function and flower initiation. Adequate phosphorus encourages earlier flowering, larger blooms and more uniform crop maturity. Plants deficient in phosphorus often produce fewer flowers, experience delayed flowering and develop smaller blooms with reduced overall quality. By maintaining optimal phosphorus availability, PK Spike helps maximise flowering potential during the most productive weeks of the crop.

Potassium is equally important for flower development and crop quality. It regulates water movement, activates hundreds of enzymatic processes and supports the production of starches and carbohydrates required for healthy flower formation. Adequate potassium also strengthens plant cell walls, helping stems and branches support the increased weight of developing flowers while reducing the risk of bending or breakage under heavy loads.

Suitable for hydroponics, coco coir and soil, GreenPlanet PK Spike integrates easily into existing nutrient programs. For best results, apply during weeks 3 to 6 of flowering at 1mL per litre, when plants naturally require increased phosphorus and potassium to maximise flower bulk, density and ripening.

Whether growing flowering ornamentals or productive fruiting crops, GreenPlanet PK Spike delivers the concentrated bloom nutrition needed to achieve larger flowers, improved crop quality and maximum harvest potential.

Key Benefits

• High-strength phosphorus and potassium bloom booster
• Contains over 25% more P & K than many leading competitors
• Promotes larger, denser flowers
• Supports improved flower formation and seed production
• Encourages earlier and more uniform crop maturity
• Improves overall crop quality
• Enhances starch and carbohydrate production
• Strengthens stems and branches during flowering
• Suitable for hydroponics, coco coir and soil
• Ideal for peak flowering applications

Recommended Applications

• Peak flowering
• Fruiting plants
• Hydroponics
• Coco coir
• Soil
• Indoor and outdoor gardens

Application Rate

• 1mL per litre during weeks 3–6 of the flowering cycle.