Additives & Boosters

Hydroponic additives are supplements used alongside base nutrients to support plant health and improve overall growing conditions. They are designed to help plants absorb nutrients more efficiently, maintain a healthy root zone and cope better with environmental stress. read more... Unlike base feeds, hydroponic additives do not replace core nutrition. Instead, they help optimise how nutrients are delivered and used...
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153 products

Showing 73 to 96 of 153 products

Showing 73 to 96 of 153 products
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Canna Mono 1L nutrient supplement
Canna Calcium (Ca 15%) Mono 1L
Sale price£15.00
Canna Cure pest control concentrateCanna Cure pest control concentrate – view 2
Canna Cure Pest & Mildew Leaf Spray
Sale priceFrom £20.00
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Canna Cure RTU ready-to-use pest control spray
Save £30.00
Canna Boost 1L bottleCanna Boost bloom accelerator
Canna Boost Flowering Additive
Sale price£319.99 Regular price£349.99
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Canna PK 13/14 bloom booster – view 3Canna PK 13/14 bloom booster
Canna PK 13/14 Bloom Booster
Sale priceFrom £15.00
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Canna Cannazym enzyme additiveCanna Cannazym enzyme additive – view 2
Canna Cannazym Enzyme Additive
Sale priceFrom £15.00
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Shogun Samurai Hydro Grow A&B (soft water) base nutrientShogun Samurai Hydro Grow A&B 1L
Shogun Samurai Hydro Grow A&B (SW)
Sale priceFrom £14.95
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Shogun Start plant starterShogun Start plant starter – view 2
Shogun Start Root Stimulant
Sale priceFrom £9.99
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Shogun Geisha Foliar foliar sprayShogun Geisha Foliar foliar spray – view 10
Shogun Geisha Foliar Nutrient Spray
Sale priceFrom £10.00
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Shogun Katana Roots root stimulatorShogun Katana Roots root stimulator – view 2
Shogun Katana Roots Root Stimulant
Sale priceFrom £9.99
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Shogun Samurai Terra Bloom base nutrientShogun Samurai Terra Bloom base nutrient – view 2
Shogun Samurai Terra Bloom
Sale priceFrom £13.95
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Shogun Samurai Terra Grow base nutrientShogun Samurai Terra Grow base nutrient – view 2
Shogun Samurai Terra Grow
Sale priceFrom £13.95
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Shogun Dragon Force bloom additiveShogun Dragon Force bloom additive – view 2
Shogun Dragon Force Bloom Additive
Sale priceFrom £7.99
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Shogun Sumo Active Boost bloom boosterShogun Sumo Active Boost bloom booster – view 2
Shogun Sumo Active Boost
Sale priceFrom £11.99
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Shogun Sumo Boost bloom boosterShogun Sumo Boost bloom booster – view 2
Shogun Sumo Boost Bloom Enhancer
Sale priceFrom £11.99
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Shogun Zenzym enzyme additiveShogun Zenzym enzyme additive – view 2
Shogun Zenzym Enzyme Additive
Sale priceFrom £6.99
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Mills pH- 1L pH down adjuster
Mills Vitalize plant additiveMills Vitalize plant additive – view 2
Mills Vitalize Growth Stimulant
Sale priceFrom £100.00
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Mills Ultimate PK bloom boosterMills Ultimate PK bloom booster – view 3
Mills Ultimate PK Bloom Additive
Sale priceFrom £50.00
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About Additives & Boosters

Hydroponic additives are supplements used alongside base nutrients to support plant health and improve overall growing conditions. They are designed to help plants absorb nutrients more efficiently, maintain a healthy root zone and cope better with environmental stress.

read more...

Unlike base feeds, hydroponic additives do not replace core nutrition. Instead, they help optimise how nutrients are delivered and used within a hydroponic system.

Why Use Hydroponic Additives?

  • To support nutrient uptake and availability
  • To help maintain healthy root systems
  • To reduce plant stress and deficiency risk
  • To improve stability of the nutrient solution
  • They are suitable for most hydroponic growing methods

Hydroponic Additives FAQs

What Are Hydroponic Additives?

Hydroponic additives are supporting products added to a nutrient solution to improve growing conditions rather than directly increase growth. They are commonly used to support roots, improve nutrient absorption or stabilise the growing environment.

Are Hydroponic Additives Necessary?

Hydroponic additives are not always essential, but many growers use them to improve consistency and plant health. When used correctly, they can help reduce common issues such as deficiencies or root stress.

Can Hydroponic Additives Be Used Throughout The Grow?

Yes, many additives are suitable for use across most or all stages of the plant lifecycle. However, usage depends on the product type and the needs of the crop.

Do Hydroponic Additives Replace Base Nutrients?

No, hydroponic additives are designed to complement base nutrients, not replace them. Plants still require a complete base feed to receive essential macro and micronutrients.

What Is The Difference Between Hydroponic Additives and Boosters?

Hydroponic additives and boosters are both supplements, but they serve different purposes and are used in different ways.

Hydroponic Additives

Additives are supportive products that help optimise plant health and growing conditions. They focus on improving how plants function rather than forcing growth.

  • The are used to support roots and nutrient uptake
  • They help prevent stress or deficiencies
  • They are often used at low levels throughout the grow
  • They are generally low risk when used correctly

Hydroponic Boosters

Boosters are designed to push a specific growth phase such as flowering or fruit production. They are more performance focused and are usually applied for short periods.

  • They are used to increase yield or flower development
  • They are applied during specific growth stages
  • They are short term use rather than continuous feeding
  • There is a higher risk of imbalance if overused

A simple way to think about the difference is that additives help create the right conditions for healthy growth, while boosters are used to push performance at specific times.

Tips for using hydroponic additives

  • Use additives at the recommended dosage
  • Introduce one product at a time where possible
  • Monitor pH and nutrient strength regularly
  • Avoid combining unnecessary supplements

Browse our range of hydroponic additives to find reliable support products for your hydroponic growing system.