Emerald Harvest King Kola 0.3-2-3 Bloom Booster

★★★★★ 4.7 19 reviews

US$13.60
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Product details

Management number 250718583 Release Date 2026/09/17 List Price US$13.60 Model Number 250718583
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Emerald Harvest King Kola 0.3-2-3 is a three-in-one flowering supplement formulated to support bud initiation, structural flower development and late-stage ripening. Its bloom-focused combination of phosphorus and potassium helps plants manage energy transfer, flower formation, sugar movement and the development of productive flowers and fruit.

King Kola also contains hemp seed flour, a plant-derived protein source that supplies amino acids and acts as a natural nutrient-uptake aid. The carefully controlled nutrient ratio supports flowering performance without relying on excessively concentrated phosphorus levels.

Key Benefits

  • Three-stage flowering support: Supports budding, structural flower development and ripening with one supplement.
  • Bloom-focused nutrition: Supplies phosphorus and potassium for flower formation, fruit development and plant energy transfer.
  • Controlled P-K ratio: Provides targeted bloom nutrition without the extreme phosphorus concentrations found in some flowering additives.
  • Plant-derived protein: Uses hemp seed flour instead of animal-derived protein sources.
  • Natural amino acids: Hemp seed flour supplies amino-acid building blocks that support plant metabolism and nutrient use.
  • Sugar translocation support: Potassium helps move carbohydrates produced during photosynthesis to developing flowers and fruit.
  • Structural development: Supports strong, productive flowering sites throughout the bloom cycle.
  • Broad compatibility: Suitable for hydroponics, coco coir and other properly managed growing media.

Guaranteed Analysis and Ingredients

  • N-P-K: 0.3-2-3
  • Total nitrogen: 0.3%
  • Available phosphate: 2%
  • Soluble potash: 3%
  • Notable ingredient: Hemp seed flour
  • Nutrient sources: Potassium sulfate, monopotassium phosphate, monoammonium phosphate and hemp seed flour
  • Product type: Liquid phosphorus, potassium and plant-derived protein flowering supplement

King Kola is a bloom supplement and should be used alongside a complete base fertilizer program. It is not intended to provide complete plant nutrition by itself.

Three Stages in One Bloom Booster

King Kola is formulated to support three important portions of the flowering cycle:

  • Bud initiation: Phosphorus supports energy transfer and the biological processes involved in flower formation.
  • Structural flower development: Phosphorus and potassium help support expanding flowers, fruit and productive bloom sites.
  • Ripening: Potassium assists carbohydrate movement, water regulation and the development of crop quality during late flowering.

The application rate changes throughout the cycle so plants receive more King Kola during peak flower development and less as they approach final ripening.

Hemp Seed Flour and Plant-Derived Protein

Hemp seed flour is a vegetable-based protein source containing naturally occurring amino acids. These compounds support plant metabolism and can help nutrients remain accessible for root uptake.

The manufacturer uses hemp seed flour as an alternative to animal-derived protein ingredients commonly found in some organic-based flowering supplements.

Official Application Rates

The Emerald Harvest feed chart recommends the following root-zone application schedule:

  • Vegetative Growth: Do not apply.
  • Flowering Week 1 – Transition: 4 mL per gallon.
  • Flowering Weeks 2–3 – Early Flowering: 8 mL per gallon.
  • Flowering Weeks 4–5 – Mid Flowering: 12 mL per gallon.
  • Flowering Weeks 6–7 – Late Flowering: 8 mL per gallon.
  • Flowering Week 8 – Ripening: 4 mL per gallon.
  • Flowering Week 9 – Final Ripening: Discontinue use.

These rates correspond to the manufacturer’s standard nine-week flowering chart. For crops with shorter or longer flowering periods, align the rising and tapering rates with the plant’s developmental stage and monitor its response.

Recommended Mixing Instructions

  1. Shake the bottle thoroughly before measuring.
  2. Fill the reservoir or watering container with fresh water.
  3. Add the required base nutrients in their recommended sequence.
  4. Mix the solution thoroughly after each base nutrient.
  5. Add King Kola at the appropriate flowering-stage rate.
  6. Add other compatible supplements individually, mixing between additions.
  7. Check the completed solution’s EC or PPM and pH before feeding.

Never combine King Kola directly with undiluted base nutrients or other concentrated supplements.

Using It With Base Nutrients

King Kola is designed to supplement a complete flowering-stage base nutrient program. For a fully integrated Emerald Harvest program, use it with the appropriate Grow, Micro and Bloom combination or Cali Pro Bloom A and Bloom B.

King Kola may also be incorporated into other compatible fertilizer programs. Account for the phosphorus and potassium already supplied by the base fertilizer and monitor total nutrient strength to avoid overfeeding.

Growing Media and System Compatibility

King Kola is suitable for properly managed:

  • Hydroponic systems
  • Coco coir
  • Rockwool and other inert media
  • Recirculating reservoirs
  • Drain-to-waste systems
  • Deep water culture
  • Flood-and-drain systems
  • Drip irrigation and fertigation
  • Soil and soilless container gardens

Follow the root-zone rates on the current feed chart. The manufacturer does not publish a separate foliar dilution rate on its current product page or standard feeding chart.

Important Usage Notes

  • Use King Kola as a flowering supplement, not as a stand-alone fertilizer.
  • Do not apply during vegetative growth under the standard Emerald Harvest schedule.
  • Reduce the rate as plants move from peak flowering into ripening.
  • Discontinue use during final ripening or the final flushing period.
  • Never premix concentrated fertilizers or supplements.
  • Monitor plant response, reservoir strength, pH and root-zone conditions.
  • Store tightly sealed and protected from direct sunlight.
  • Because the formula contains natural ingredients, use it within a reasonable period after opening.

Correction of product information

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