Athena PK

Athena PK – Phosphorus & Potassium Bloom Enhancer

Athena PK is a premium liquid bloom enhancer designed to support healthy flower development, fruit formation and crop quality during the mid to late stages of flowering. Formulated as a complementary supplement to Athena Bloom base nutrients, Athena PK provides additional phosphorus and potassium when flowering and fruiting plants require increased nutritional support.

Unlike excessively concentrated PK boosters that can disrupt nutrient balance, Athena PK has been developed to provide a carefully balanced supply of phosphorus and potassium without unnecessary nitrogen.

Part of the popular Athena Blended Line, this clean, highly soluble liquid supplement is ideal for growers looking to fine-tune their feeding programme during the flowering and fruiting stages.

Suitable for a wide range of flowering and fruit-producing crops, including tomatoes, peppers, strawberries and ornamental flowering plants, Athena PK helps provide the essential minerals required for healthy crop development and consistent plant performance.

Key Features & Benefits

• Balanced PK bloom enhancer: Provides additional phosphorus and potassium during flowering and fruit development.
• Supports healthy flower formation: Supplies nutrients involved in normal flowering and reproductive development.
• Promotes fruit development: Provides potassium and phosphorus to support fruit-producing crops.
• Zero-nitrogen formulation: Allows additional PK supplementation without increasing nitrogen input.
• Designed for balanced nutrition: Formulated to complement Athena Bloom nutrients without unnecessarily excessive phosphorus and potassium levels.
• Supports crop quality: Helps maintain the mineral nutrition required for healthy flowering and fruiting.
• Clean liquid formula: Designed for consistent mixing and use in compatible irrigation systems.
• Easy to incorporate: Can be added to an existing Athena Blended Line feeding programme.
• Mid to late flowering application: Designed for use from approximately week three of flowering, according to the appropriate feeding schedule.

Why Use Athena PK?

As plants progress through flowering and fruit development, their nutritional requirements can change. Phosphorus and potassium play important roles in several processes involved in reproductive growth, energy transfer and the development of flowers and fruit.

Athena PK provides an additional source of these nutrients to complement the existing Athena Bloom base fertilisers.

Rather than simply supplying the highest possible concentration of phosphorus and potassium, Athena PK focuses on maintaining a more balanced nutrient profile.

Excessive PK supplementation can interfere with the availability and uptake of other important minerals, including calcium and magnesium. This can lead to nutrient imbalances and potentially affect plant health and development.

By using Athena PK at the appropriate concentration, growers can adjust their flowering nutrition while maintaining greater control over the overall nutrient solution.

Understanding Phosphorus & Potassium

Phosphorus and potassium are two essential macronutrients required throughout the plant life cycle. Their importance becomes particularly relevant when managing the nutritional requirements of flowering and fruiting crops.

Phosphorus (P)

Phosphorus plays an important role in energy transfer, root development and normal reproductive growth.

• Supports energy transfer within plant cells.
• Contributes to healthy root development.
• Plays a role in flower and seed formation.
• Supports normal plant metabolism and development.

Potassium (K)

Potassium is involved in water regulation, enzyme activity and several processes associated with fruit development and overall crop quality.

• Supports water regulation and stomatal function.
• Contributes to enzyme activity and nutrient transport.
• Plays an important role in fruit development.
• Helps maintain normal plant function during demanding growth stages.

Maintaining an appropriate balance of these nutrients is important. Supplying more phosphorus or potassium than a crop requires does not automatically improve flowering or increase yields.

How to Use Athena PK

Athena PK is designed to be used alongside Athena Bloom base nutrients during the flowering and fruiting stages.

Application typically begins around week three of flowering, following the appropriate Athena Blended Line feeding schedule.

1. Fill your reservoir or mixing container with clean water.
2. Shake the Athena PK bottle thoroughly before use.
3. Add your Athena Bloom base nutrients separately, following the manufacturer's recommended mixing order.
4. Measure the required amount of Athena PK and add it to the diluted nutrient solution.
5. Mix thoroughly to ensure an even distribution.
6. Add any remaining compatible supplements according to their instructions.
7. Measure the electrical conductivity (EC) of the finished nutrient solution.
8. Check and adjust the pH after all nutrients and additives have been mixed.
9. Feed according to your crop's requirements and the appropriate Athena feeding schedule.

Recommended dosage: 3ml to 10ml per 4 litres of water, equivalent to approximately 0.75ml to 2.5ml per litre.

When to use: From approximately week three of flowering, according to the relevant feeding programme.

The correct dosage depends on the crop, growing medium, water quality and stage of development. Start with the appropriate concentration for your feeding programme and adjust only where necessary.

Important: Never mix concentrated Athena PK directly with concentrated base nutrients. Always dilute fertilisers separately in water to avoid unwanted mineral reactions.

Athena PK Dosage Guide

Always follow the latest Athena Blended Line feeding schedule for the correct application rate and timing.

Why Balanced PK Supplementation Matters

Phosphorus and potassium are essential nutrients, but maintaining the correct balance is just as important as supplying adequate quantities.

Excessive phosphorus can interfere with the availability of certain micronutrients, while excessive potassium may compete with calcium and magnesium uptake.

These interactions can lead to nutritional imbalances, particularly in hydroponic systems where the grower has direct control over the nutrient solution.

Athena PK is designed to complement the mineral profile of Athena Bloom base nutrients, allowing growers to increase phosphorus and potassium input as part of a controlled feeding programme.

For best results, avoid combining multiple PK boosters unless the complete nutrient profile has been carefully considered.

Suitable Growing Systems

Athena PK can be incorporated into compatible feeding programmes across a wide range of growing methods, including:

• Hydroponic growing systems
• Deep Water Culture (DWC)
• Recirculating hydroponic systems
• Coco coir growing media
• Rockwool and other soilless substrates
• Drip irrigation and automated feeding systems
• Soil-based growing systems
• Indoor growing environments and greenhouses

The ideal application rate will depend on the growing system, nutrient programme and crop requirements.

Tips for Best Results

• Shake the bottle thoroughly before measuring.
• Use clean measuring equipment to prevent contamination.
• Always use Athena PK alongside a suitable base nutrient programme.
• Begin application at the appropriate flowering stage.
• Follow the recommended Athena Blended Line feeding schedule.
• Monitor EC regularly and adjust nutrient strength according to crop requirements.
• Check and adjust pH after mixing all nutrients and additives.
• Avoid excessive phosphorus and potassium supplementation.
• Do not mix concentrated fertilisers together.
• Monitor plant health throughout flowering and fruit development.

Storage Instructions

Store Athena PK in its original container with the lid securely closed. Keep in a cool, dry location away from direct sunlight and extreme temperatures.

Follow the storage and handling instructions printed on the product label.

Buy Athena PK at GHEDirect

We stock a comprehensive range of Athena nutrients and additives, including the Athena Blended Line, helping growers find the right products for every stage of plant development.

Whether you're growing fruiting vegetables, ornamental flowers or managing a larger hydroponic system, our experienced team is available to offer practical advice on plant nutrition and feeding.

Order online for fast UK delivery or visit The Greenhouse Effect in Milton Keynes to explore our range in store.