Emerald Harvest - King Kola

PK Bloom Booster for Bigger Flowers and Fruit Development

Emerald Harvest King Kola is a powerful PK bloom booster designed to support flower formation, fruit development and ripening throughout the flowering stage. Its phosphorus and potassium-rich formula provides additional flowering nutrition alongside your regular base nutrients, helping plants meet their changing nutritional demands.

Unlike conventional PK boosters, King Kola also contains hemp seed flour, a natural source of plant-derived protein and amino acids. Its combination of essential flowering nutrients and plant-derived ingredients makes it a useful addition to your feeding programme, whether you're growing in hydroponics, coco or soil.

Use King Kola throughout flowering, increasing the dosage during peak bloom before gradually reducing it towards the end of the cycle.

Please note: The 9.46L and 22.71L bottles are purchase to order, so delivery may take slightly longer than usual.

Key Benefits

• Powerful PK bloom booster – supplies additional phosphorus and potassium to support healthy flower and fruit development.
• Supports flowering from start to finish – designed for use during the flowering transition, peak bloom and ripening stages.
• Encourages productive flowering sites – formulated to support flower formation and development during the early flowering stage.
• Contains hemp seed flour – provides natural, plant-derived protein and amino acids that help support nutrient availability.
• Supports flower size and development – provides additional flowering nutrition as plants move through their most demanding growth stages.
• Simple feeding schedule – increase the dosage during mid-flowering before reducing it towards the end of the cycle.
• Suitable for multiple growing methods – works alongside your regular base nutrients in hydroponics, coco and soil.

Why You Need Emerald Harvest King Kola

As plants enter flowering, their nutritional requirements change. Phosphorus and potassium become particularly important as plants develop flowers and fruits, and your regular base nutrients may benefit from additional flowering support.

King Kola is designed to provide that support throughout the flowering cycle, rather than being limited to a short period during peak bloom.

During the initial transition, its targeted nutrient profile supports early flowering and flower formation. As plants move into mid-flowering, the dosage increases to provide additional phosphorus and potassium when flowering demands are higher.

King Kola also contains hemp seed flour, which provides naturally occurring, plant-derived proteins and amino acids. According to Emerald Harvest, these ingredients act as natural chelators, helping make nutrients more available to plants.

It's designed to work alongside the Emerald Harvest nutrient range, particularly Cali Pro Bloom A&B, providing a straightforward way to introduce additional flowering nutrition without changing your entire feeding programme.

How to Use Emerald Harvest King Kola

King Kola is a liquid flowering additive designed to be used alongside your regular base nutrients. Begin using it during the first week of the flowering transition, increase the dosage during mid-flowering and gradually reduce it as plants approach the end of their flowering cycle.

1. Prepare your water: Fill your reservoir or watering can with the required amount of fresh water.
2. Add your base nutrients: Introduce your regular base nutrients according to the manufacturer's instructions. If you're using Cali Pro A&B, always add Part A first, mix thoroughly and then add Part B.
3. Add King Kola: Measure the recommended dosage for your current flowering stage and add it to your nutrient solution.
4. Mix thoroughly: Allow King Kola to disperse evenly before introducing any additional nutrients or additives.
5. Check your readings: Measure your EC and adjust the final nutrient solution to the recommended pH range for your feeding programme.

Important: Never mix concentrated nutrients and additives together before diluting them. Always introduce each product separately, mixing thoroughly between additions.

Emerald Harvest King Kola Feeding Schedule

Follow the manufacturer's recommended feeding rates below. This schedule is based on Emerald Harvest's official 2-Part Nutrient Series feeding chart and covers a standard nine-week flowering cycle.

All measurements are in millilitres per litre of water.

When to start: Introduce King Kola at 1ml/L during the first week of flowering, alongside Cali Pro Grow A&B if you're following Emerald Harvest's complete feeding programme.

Peak flowering: Increase the dosage to 3ml/L during weeks four and five, when the manufacturer's feeding programme provides its highest King Kola concentration.

When to stop: Reduce the dosage during late flowering and ripening, stopping King Kola altogether in the final week.

If your plants require a longer flowering period, Emerald Harvest recommends repeating one or more mid-flowering weeks as necessary. Always monitor plant response and adjust your feeding programme accordingly.

For the complete feeding programme, including Cali Pro Grow A&B, Cali Pro Bloom A&B and the additional Emerald Harvest products, view the official Emerald Harvest Feeding Chart.

Tech Specs

• Brand: Emerald Harvest
• Product: King Kola
• Product type: Liquid PK bloom booster
• NPK: 0.3-2-3
• Growth stage: Flowering and ripening
• Key nutrients: Phosphorus, potassium and nitrogen
• Additional ingredients: Hemp seed flour containing plant-derived protein and amino acids
• Recommended dosage: 1–3ml/L, depending on flowering stage
• Recommended pH: 5.8–6.3 when following Emerald Harvest's complete feeding programme
• Recommended water temperature: 16–22°C
• Suitable media: Hydroponics, coco and soil
• Suitable systems: Recirculating and drain-to-waste
• Available sizes: 0.95L, 3.79L, 9.46L and 22.71L

Top Tip: Follow the feeding schedule rather than using the maximum dosage throughout flowering. King Kola is designed to provide different levels of phosphorus and potassium as plants develop, with the highest dosage reserved for mid-flowering. For a complete Emerald Harvest feeding programme, pair it with Cali Pro Bloom A&B and follow the manufacturer's recommendations for introducing additional additives.