Showing 73–96 of 138 resultsSorted by latest

Royal Dutch Complete Professional Nutrient Soil A and B

Price range: £15.00 through £60.00 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

Royal Dutch Complete Professional Nutrient Soil A and B is a two-part nutrient designed specifically for growing in soil, helping support strong plant development and productive growth throughout the cycle.

  • Two-part Soil A and B nutrient for soil-grown plants
  • Specifically developed for fast growing plants in soil
  • Supports vigorous plant growth and healthy development
  • Formulated to help growers achieve increased yields in soil systems
  • Suitable for use as a complete professional nutrient base feed
  • Available in 1L, 5L and 10L sizes to suit different grow spaces

Royal Dutch Complete Professional Nutrient Coco A and B

Price range: £15.00 through £55.00 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

Royal Dutch Complete Professional Nutrient Coco A and B is a two-part nutrient designed specifically for plants grown in coco coir, supporting fast, healthy growth and strong overall development. Available in 1L, 5L and 10L sizes.

  • Two-part coco nutrient for balanced feeding
  • Specifically developed for growing in coco
  • Supports vigorous plant growth and strong development
  • Suitable for growers looking for a complete professional feed
  • Available in 1L, 5L and 10L bottle options
  • Ideal for routine use throughout coco-based feeding programmes

Buddhas Tree PK 9-18 Flowering Booster

Price range: £30.00 through £265.50 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

Buddhas Tree PK 9-18 is a soluble flowering booster designed to support strong bloom development, healthy nutrient uptake and improved crop quality during the flowering phase. Available in 250ml, 1L and 5L sizes, it works alongside your base feed programme.

  • PK 9-18 soluble flowering booster for use during bloom
  • Supports phosphorus and potassium availability during key flowering stages
  • Helps complement established nutrient ranges rather than replace them
  • Designed to encourage healthy root activity and efficient nutrient uptake
  • Suitable for growers looking to support flower quality and plant performance
  • Available size options: 250ml, 1L and 5L

Growth Technology Liquid Oxygen for Hydroponics

Price range: £6.00 through £27.50 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

Growth Technology Liquid Oxygen is a hydroponic system treatment designed to add oxygen to the nutrient tank, support healthier root conditions and help maintain a cleaner growing system. Available in 250ml, 1L and 5L sizes, it is suitable for regular reservoir use and system cleaning between crops.

  • Adds extra oxygen to the nutrient solution to support active root zones
  • Helps improve nutrient uptake and encourages stronger, more vigorous plant growth
  • Can assist with hydroponic system hygiene by helping control unwanted organic contaminants
  • Suitable for daily addition to nutrient tanks when used as directed
  • Can also be used at higher concentration for cleaning and sterilising systems, pots and benches between crops
  • Available size options: 250ml, 1L and 5L

Plant Magic Plus Magne-Cal+ Calcium and Magnesium Nutrient

£55.00 incl. Vat

Plant Magic Plus Magne-Cal+ is a calcium and magnesium nutrient designed to support healthy growth when plants need extra Ca and Mg, especially alongside PK boosters. Available in 250ml, 1L and 5L sizes.

  • Helps prevent and correct magnesium deficiency linked to yellowing leaves
  • Supports the increased calcium and magnesium demand created by PK boosters
  • Aids nutrient transport, cell strength, photosynthesis and enzyme activity
  • Includes trace elements including iron, manganese and zinc
  • Suitable for growers wanting to maintain a balanced feeding programme
  • Available size options: 250ml, 1L and 5L

Growth Technology Liquid Silicon Plant Additive

Price range: £5.00 through £12.00 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

Growth Technology Liquid Silicon is a plant-strengthening additive designed for use in hydroponic systems, coco and soil. It helps support stronger cell walls, healthier growth and improved resilience throughout both vegetative and flowering stages, with sizes available in 250ml, 1L and 5L.

  • Helps strengthen plant cell walls for sturdier growth
  • Supports nutrient uptake and transport through the plant
  • Encourages darker green foliage through improved chlorophyll production
  • Suitable for use in all growing media and hydroponic techniques
  • Can be used from established vegetative growth through to flowering
  • Available size options: 250ml, 1L and 5L

Plant Magic Plus Evolution Foliar Spray

Price range: £20.00 through £55.00 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

EVOLUTION will significantly speed up vegetative stages and gears the plant ready for
forming bountiful fruits and flowers, this is due predominantly to the sheer amount of new
growth that forms and the number of healthy new shoots.

Benefits of Evolution

EVOLUTION has an abundance of benefits for your plants; improved photosynthesis leading to rapid vertical growth, healthier plants, more fruit sets (leading to better yields) and an improved root structure is just a fraction that can be achieved using this unique formula.

- Vigorous Vertical Growth
- New Healthy Shoots
- Larger Plants, Larger Yields

EVOLUTION is a complex containing a vast range of bio stimulants, natural plant hormones, Polysaccharide sugars, a wealth of vitamins, trace elements, amino acids and of course humic and fulvic acids.

EVOLUTION can be used in ANY method of growing.

NB: Evolution is ready to use. No dilution required.

Superthrive Vitamin and Hormone Plant Additive

Price range: £15.00 through £249.00 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

Superthrive is a well-known vitamin and hormone plant additive designed to support healthier growth, help plants recover from stress and provide a useful boost across a wide range of growing situations.

  • Concentrated liquid formula that goes a long way
  • Ideal as a plant pick me up during periods of stress or transplanting
  • Suitable for house plants, vegetables, trees and flowers
  • Can be used to support both vegetative growth and flowering programmes
  • Available in 120ml, 480ml, 960ml, 3.8l and 9.5l sizes
  • Popular plant health additive for routine care and recovery support

GHE Ripen Late Flowering Forcing Solution

Price range: £6.50 through £29.00 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

GHE Ripen is a late flowering forcing solution designed to support the final stage of plant development, helping encourage faster ripening, improved flower development and a cleaner finish before harvest.

  • Late flowering nutrient designed to help plants finish their cycle
  • Encourages plants to focus energy on final ripening and flower development
  • Supplies mineral salts in a form that is easy for plants to assimilate
  • Helps plants metabolise residual nitrates and microelements for a cleaner end result
  • Useful when crops need help reaching maturity more quickly at the end of flowering
  • Available in 500ml, 1l and 5l sizes to suit small and large grow set-ups

House and Garden Amino Treatment Growth Booster

Price range: £35.00 through £80.00 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

House and Garden Amino Treatment is a plant growth and flowering booster designed to support stronger development through both vegetative growth and bloom. Used alongside a regular feeding programme, it helps growers encourage healthier foliage, stem strength, root activity and improved fruit quality, with 250ml and 1L bottle options available.

  • Supports vigorous plant growth and productive flowering
  • Helps promote balanced foliage distribution and stronger plant structure
  • Encourages active photosynthesis and improved stem development
  • Supports healthy root activity during key growth stages
  • Aims to assist fruit production and sugar development
  • Available in 250ml and 1L bottle sizes to suit different grow setups

House and Garden Roots Excelurator Root Stimulator

Price range: £39.00 through £69.00 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

House and Garden Roots Excelurator is a powerful root stimulator designed to support fast root development, improve the root environment and help plants maintain healthy white roots in a wide range of growing systems.

  • Encourages rapid root mass development during early and active growth
  • Helps maintain a healthier rhizosphere around the root zone
  • Forms a protective film around roots while still allowing nutrient uptake
  • Useful for supporting plants affected by stressed or discoloured roots
  • Suitable for growers looking to improve root establishment in the growing medium
  • Available in 250ml, 500ml and 1L sizes to suit different garden and grow room needs

Budlink Silicon Supplement for Plant Growth | 1L and 5L

Price range: £20.00 through £59.00 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

BudLink is a highly soluble silica-based nutrient supplement designed to support stronger plant development, better nutrient uptake and improved crop structure throughout both vegetative growth and flowering. Available in 1L and 5L sizes, it is a practical addition to a wide range of feeding programmes.

  • Highly soluble source of silicon for routine nutrient programmes
  • Helps support stronger plant structure and improved cell development
  • Assists more efficient uptake of nutrients
  • Helps reduce moisture loss during active growth
  • Supports plant resilience and natural defence response
  • Available in 1L and 5L options to suit different grow sizes

Advanced Nutrients Big Bud Flowering Enhancer

Price range: £37.50 through £275.00 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

Advanced Nutrients Big Bud is a popular flowering enhancer designed for use during the middle stages of bloom, helping growers support plants during peak flower development. Available in 1L, 4L and 10L sizes, it is suitable for growers who need a reliable bloom booster for small or larger feed programmes.

  • Popular flowering enhancer for the middle stage of bloom
  • Recommended application rate of 2ml per litre
  • Designed to complement a wider flowering feed programme
  • Suitable for growers looking to support bloom development
  • Available in 1L, 4L and 10L options
  • Ideal for use within hydroponic and horticultural nutrient schedules

Advanced Nutrients Overdrive Flowering Enhancer

Price range: £37.50 through £275.00 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

Advanced Nutrients Overdrive is a late-flowering enhancer designed to be used during the final stage of bloom as part of your existing nutrient schedule. Available in 1L, 4L and 10L sizes, it is a practical choice for growers wanting a straightforward end-of-bloom additive for hydroponic and general horticultural feeding programmes.

  • Flowering enhancer for the final stages of bloom
  • Recommended application rate of 2ml per litre
  • Designed to work alongside your core bloom nutrient schedule
  • Suitable for hydroponic and general indoor horticultural use
  • Available in 1L, 4L and 10L bottle options
  • Useful for growers following a structured late-bloom feeding programme

Atami B’Cuzz Root Stimulator Root Additive

Price range: £14.50 through £44.00 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

Atami B'Cuzz Root Stimulator is a root development additive designed to support strong early root growth, improve nutrient and water uptake, and help maintain a healthier root zone during the first stage of plant development.

  • Encourages strong root growth in the early stage of development
  • Supports efficient uptake of water, nutrient salts and sugars
  • Helps reduce the chances of common root zone problems such as root rot and Fusarium
  • Intended for daily use during the first week
  • Simple dosage rate of 1ml per litre of water
  • Available in 250ml, 500ml and 1L sizes

BioBizz Bio-Bloom Organic Flowering Fertiliser

Price range: £9.50 through £36.00 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

BioBizz Bio-Bloom is a complete liquid organic flowering fertiliser designed to support strong flowering and fruiting from the start of bloom through to the end of production. Suitable for soil, soilless mixes and fortified coco, it is available in 500ml, 1L and 5L sizes.

  • Complete liquid organic fertiliser for flowering and fruiting plants
  • Contains nitrogen, phosphorus and potassium for bloom-stage feeding
  • Includes trace elements and vegetable-origin hormones
  • Formulated with enzymes and amino acids to work with the root zone
  • Suitable for use in soil, soilless media and fortified coco
  • Available in 500ml, 1L and 5L bottle sizes

BioBizz Bio-Grow Organic Liquid Growth Fertiliser

Price range: £9.00 through £30.00 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

BioBizz Bio-Grow is an organic liquid growth fertiliser designed for use in most soils and substrate mixes, helping support vigorous vegetative growth while encouraging healthy microbial activity in the root zone.

  • Growth liquid fertiliser for soil and substrate mixtures
  • Made with 100% Dutch organic sugar beet extract, commonly known as molasses
  • Helps activate beneficial bacterial flora and soil micro activity
  • Contains 70 trace elements plus vitamins B1, B2, C and E
  • Suitable from the first leaves through to the fruiting and flowering stage
  • Available in 500ml, 1L and 5L sizes

Essentials PLUS Fulvic Plant Growth Supplement

£25.00 incl. Vat

Essentials PLUS Fulvic is a fulvic acid plant growth supplement designed to support nutrient uptake and transport throughout the full plant life cycle. Suitable for regular feeding programmes and foliar use, it helps plants make better use of other nutrients and additives.

  • Contains fulvic acids derived from organic matter in soil
  • Helps enhance nutrient uptake and internal nutrient transport
  • Designed for use throughout the plant life cycle
  • Supports the effectiveness of other nutrients and additives
  • Can be applied as part of a regular feed routine or as a foliar spray
  • Available in 250ml and 1L sizes

VitaLink PlantStart Propagation Nutrient

Price range: £5.00 through £12.00 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

VitaLink PlantStart is a propagation nutrient designed to support seedlings and rooted cuttings during the earliest stage of growth, helping encourage strong roots and healthier establishment from the start.

  • Developed for seedlings, cuttings and early propagation
  • Promotes fast and healthy root development
  • Contains a key boron and calcium ratio for early growth support
  • Helps reduce standard rooting times during propagation
  • Supports stronger resistance to infection and disease pressure
  • Available in 250ml and 1L sizes to suit small or larger propagation setups

VitaLink Buddy PK Additive for Flowering Plants

Price range: £6.00 through £48.00 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

VitaLink Buddy is a PK additive formulated to support flowering and fruiting plants with added potassium, phosphorus, magnesium and sulphur. Designed for use from bloom week 3 to week 8, it helps support plant quality and strong flower and fruit development, with sizes available in 250ml, 1L and 5L.

  • PK additive rich in potassium and phosphorus
  • Includes added magnesium and sulphur for balanced flowering support
  • Helps support flower and fruit quality during the bloom stage
  • Low concentrated formula suitable for use over a longer flowering period
  • Recommended from bloom week 3 until bloom week 8
  • Dosage rate of 1ml per 1L
  • Available in 250ml, 1L and 5L bottles

VitaLink Earth MAX Bloom Soil Nutrient

Price range: £8.50 through £21.50 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

VitaLink Earth MAX Bloom is a mineral flowering nutrient with added Fulvic Acid, developed for plants grown in soil or compost and designed to support healthy bloom development and productive flowering.

  • Mineral bloom nutrient for plants grown in soil or compost media
  • Contains added Fulvic Acid to support nutrient availability and plant development
  • Formulated to support flowering and fruiting stages
  • Recommended for use from bloom week 2 through to bloom week 8
  • Dosage guide: 3-4ml per litre of water
  • Available in 1L and 5L bottle options

VitaLink Earth MAX Grow Soil Nutrient

Price range: £8.50 through £21.50 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

VitaLink Earth MAX Grow is a mineral grow nutrient with added Fulvic Acid, developed for plants grown in soil or compost and designed to support strong vegetative growth in the early stage of development.

  • Formulated for plants grown in soil and compost media
  • Mineral nutrient with added Fulvic Acid
  • Supports healthy vegetative growth and plant development
  • Suitable for use with potted plants
  • Recommended for the first 3 weeks of the vegetation stage
  • Available in 1L and 5L bottle options

VitaLink Coir Bloom Coco Flowering Nutrient

Price range: £8.50 through £20.00 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

VitaLink Coir Bloom is a one-part flowering nutrient designed for plants grown in coco coir, with hard water and soft water options available in 1L and 5L sizes.

  • Coco-specific bloom nutrient formulated to suit coir growing media
  • One-part formula for straightforward feeding during flowering or fruiting
  • Available in hard water and soft water variants to match your water supply
  • Supplied in 1L and 5L bottle sizes for smaller or larger grow setups
  • Contains Vitamin B1 to support healthy root development and plant vigour
  • Includes humic acid and fulvic acid to aid nutrient uptake and transport

VitaLink Coir Grow Coco Nutrient | Hard or Soft Water

Price range: £8.50 through £20.00 incl. Vat
Select options This product has multiple variants. The options may be chosen on the product page

VitaLink Coir Grow is a one-part coco-specific nutrient designed to support healthy vegetative growth in coir growing systems, with hard water and soft water options available in 1L and 5L sizes.

  • Formulated specifically for use in coco growing media
  • One-part grow nutrient for straightforward feeding during vegetative growth
  • Contains Vitamin B1 to support root development and plant health
  • Includes humic acid to help improve nutrient uptake and transport
  • Includes fulvic acid to assist root absorption and overall development
  • Available in 1L and 5L bottles for hard water or soft water setups

What Are Nutrients and Boosters?

Nutrients and boosters are products used to support plant growth, improve root development and maximise flowering potential. Base nutrients provide the essential elements plants need throughout their lifecycle, while additives and boosters are designed to support specific stages such as rooting, vegetative growth and bloom.

Indoor plants rely on a balanced feeding programme to achieve strong growth and healthy development. Choosing the correct nutrients for your growing method is one of the most important parts of any successful indoor growing setup.

Types of Plant Nutrients and Additives

There are several different types of nutrients and boosters available depending on your setup and the stage of growth:

  • Base Nutrients – provide the core nutrients plants need for everyday growth
  • Root Stimulators – support early root development and plant establishment
  • Veg Boosters – help encourage vigorous vegetative growth
  • Bloom Boosters – support flower development and final yields
  • Enzymes and beneficial products – help maintain a healthier root zone and nutrient uptake
  • pH and nutrient management products – help keep feeding solutions balanced and stable

Using the right combination of products can help plants perform more consistently throughout the growing cycle.

Why Nutrients Matter in Indoor Growing

Plants grown indoors depend on the grower to provide the nutrients they need. Without the right feed, plants can suffer from poor growth, weak roots and reduced yields.

  • Supports healthy root and leaf development
  • Helps plants maintain vigorous growth
  • Encourages stronger flowering and fruiting
  • Improves plant health and overall performance
  • Helps maximise the results of your indoor setup

Whether you are growing in soil, coco or a fully recirculating hydroponic system, nutrients play a major role in plant performance and final results.

Choosing the Right Nutrients for Your Growing Medium

Different growing media require different feeding approaches. Choosing nutrients that match your setup helps maintain balance and improve uptake.

  • Soil nutrients – designed for plants grown in traditional soil mixes
  • Coco nutrients – formulated for the unique properties of coco coir
  • Hydroponic nutrients – designed for use in water-based growing systems

If you are growing in coco, rockwool or soil, it is important to use nutrients suited to that medium. For growers using advanced systems, our range also supports NFT, DWC, flood and drain and drip irrigation systems.

Nutrients and Indoor Growing Setups

Nutrients work best as part of a complete indoor growing setup. For the best results, pair your feeding programme with the right equipment:

This combination helps create a stable environment where plants can absorb nutrients efficiently and grow to their full potential.

Helpful Guides for Nutrients and Feeding

If you want to learn more about feeding plants and managing nutrient levels, explore our guides:

These guides will help you understand nutrient programmes, feeding strategies and how to get the best results from your indoor growing setup.

Shop Nutrients and Boosters in the UK

At Acorn Horticulture, we stock a wide range of nutrients, bloom boosters, root stimulators and additives for indoor growers across the UK. Whether you need a complete feeding programme or specific products for flowering, rooting or nutrient management, our range is designed to support every stage of plant growth.

Browse our full range above to find the right nutrients and boosters for your setup.

FAQs

What nutrients do indoor plants need?

Indoor plants need a balanced mix of essential nutrients to support root growth, leaf development, flowering and overall health.

What is the difference between nutrients and boosters?

Base nutrients provide the essential daily feed, while boosters and additives are designed to support specific stages such as rooting, vegetative growth or flowering.

Do I need different nutrients for coco and hydroponics?

Yes, different growing media often require different nutrient formulations to achieve the best balance and uptake.

Why are pH and EC important when feeding plants?

pH and EC help you measure nutrient balance and solution strength, allowing plants to absorb feed more effectively.