BioBooster Organic High K Liquid Fertiliser 1L is a specially formulated organic liquid feed, designed to deliver a high concentration of potassium (K) to plants, enhancing flowering, fruiting, and overall plant strength. Potassium is an essential nutrient that plays a key role in plant metabolism, photosynthesis, and disease resistance. This premium fertiliser is perfect for gardeners, landscapers, and horticulturists looking to encourage strong, healthy plant growth, especially during the flowering and fruiting stages.
BioBooster Organic High K Fertiliser helps plants build stronger cell walls, improving their resilience to environmental stressors such as drought and disease. It also supports the production of vibrant flowers, high-quality fruits, and vegetables. Suitable for a wide range of plants, including fruiting vegetables, flowers, shrubs, and trees, this fertiliser is ideal for boosting the growth of plants that require an extra potassium boost during their active growing season.
Made from 100% organic ingredients, BioBooster High K is a safe and sustainable choice for those practicing eco-friendly gardening. It provides effective nutrition while being gentle on the environment, supporting healthy, chemical-free plant growth.
Features & Benefits
High Potassium (K) content – Promotes strong, healthy flowering and fruiting
100% Organic – Derived from natural, eco-friendly ingredients for sustainable gardening
Improves disease resistance – Strengthens plants against pests, diseases, and environmental stress
Enhances fruit and flower production – Encourages larger, more vibrant blooms and higher-quality fruits
Supports photosynthesis and metabolism – Vital for plant growth and energy production
Safe for all plants – Ideal for flowers, fruits, vegetables, shrubs, and trees in both indoor and outdoor settings
Applications & Application Rates
Ideal for:
Flowering and fruiting plants
Vegetables and fruit trees
Flower beds, shrubs, and container plants
Garden beds and landscapes
Application Rates:
General use: Mix 20-30ml of BioBooster High K Fertiliser per 1L of water
Apply evenly to the soil around the base of the plants for optimal nutrient uptake.
Foliar feeding: Mix 15-20ml of BioBooster per 1L of water
Spray directly onto plant leaves, ensuring thorough coverage on both the tops and undersides.
Frequency: Apply every 2-3 weeks during the growing season to promote flowering, fruiting, and overall plant health.
Formulation & How to Apply
Formulation: Organic liquid fertiliser with a high potassium (K) concentration, designed to enhance plant resilience and productivity
How to apply:
Dilute BioBooster High K Fertiliser with water at the recommended rate (20-30ml per litre for soil application, 15-20ml per litre for foliar feeding)
For soil application, water around the base of the plants, ensuring even distribution and deep penetration of nutrients
For foliar feeding, spray the solution directly onto the leaves, ensuring both sides of the leaves are covered for maximum absorption
Apply every 2-3 weeks to support fruiting and flowering stages
Storage: Keep in a cool, dry place away from direct sunlight and ensure the bottle is tightly sealed after use.

Specification Details
Product Name BioBooster Organic High K Liquid Fertiliser 1L
Form Liquid concentrate
Composition Organic high potassium content, trace elements, amino acids
Application Rate 20-30ml per 1L of water (soil), 15-20ml per 1L of water (foliar)
Application Method Soil drench or foliar spray
Coverage 1L treats up to 40-80 square meters depending on application
Suitable For Vegetables, fruits, flowers, shrubs, trees, container plants
Available Size 1L