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Nutrients & Boosters
Nutrients and boosters are essential for supporting healthy plant growth, strong root development and bigger yields in indoor growing systems. Whether you are growing in soil, coco or hydroponics, the right feeding programme helps plants get the balance of nutrients they need at every stage of growth.
At Acorn Horticulture, we supply a wide range of plant nutrients, bloom boosters and additives in the UK for beginners and experienced growers alike. Whether you are running hydroponic grow kits, using coco coir, rockwool or soil, or building a complete indoor setup with grow lights and grow tents and sheeting, our range is designed to help you feed plants properly from vegetative growth through to flowering.
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Monkey Magic Plant Booster | Acorn Horticulture
Price range: £49.00 through £139.00 incl. Vat
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This product has multiple variants. The options may be chosen on the product page
Monkey Magic is a plant booster from the Nutrients and Boosters range, designed to support healthy growth and strong crop development as part of a well-balanced feeding programme. Available in 300ml, 600ml and 1.2l bottles, it gives growers a choice of sizes to suit smaller gardens through to larger grow spaces.
- ✔ Plant booster for use within a complete nutrient schedule
- ✔ Suitable for growers looking to support vigorous plant performance
- ✔ Available in 300ml, 600ml and 1.2l options
- ✔ Practical choice for different garden sizes and feed requirements
- ✔ Works alongside your base nutrients and regular crop care routine
- ✔ Ideal for hydroponic, soil or coco feeding programmes where appropriate
BIOBIZZ Fish Mix Organic Plant Feed
Price range: £15.00 through £40.00 incl. Vat
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This product has multiple variants. The options may be chosen on the product page
BIOBIZZ Fish Mix is an organic plant feed designed to support vigorous growth, healthy leaf development and active microbial life in the root zone. Available in 1L and 5L sizes, it is well suited to growers looking for a natural nutrient option for soil and other organic growing setups.
- ✔ Organic liquid plant feed from BIOBIZZ
- ✔ Commonly used to encourage strong vegetative growth
- ✔ Helps support active microbial life in organic growing media
- ✔ Suitable for gardeners using natural feeding programmes
- ✔ Available in 1L and 5L bottle options
- ✔ Ideal for use within the Nutrients and Boosters category
PLAGRON Power Buds 5L
£120.00 incl. Vat
PLAGRON Power Buds 5L is an early flowering booster designed to support faster flower, bud and fruit formation from the moment you switch from vegetative growth to the flowering cycle.
- ✔ Early flowering booster for use at the start of bloom
- ✔ Helps speed up the formation of flowers, buds and fruits
- ✔ Designed for use when switching from vegetative growth to flowering
- ✔ Suitable for growers looking to optimise the early bloom phase
- ✔ Works well alongside a complete flowering feed programme
- ✔ Large 5L size suited to regular grow room use
PLAGRON Terra Bloom Flowering Nutrient
Price range: £35.00 through £100.00 incl. Vat
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PLAGRON Terra Bloom is a flowering-stage nutrient designed for use in soil-based growing systems, helping support healthy plant development during the bloom phase. Available in 5L, 10L and 20L sizes, it is a practical choice for growers who want a dedicated bloom feed for regular use.
- ✔ Formulated for the flowering stage in soil grows
- ✔ Suitable for growers using Terra-based feeding programmes
- ✔ Helps provide plants with bloom-phase nutrition
- ✔ Ideal for hobby, home and larger-scale grow spaces
- ✔ Available in 5L, 10L and 20L bottles
- ✔ Pairs naturally with other products in the PLAGRON nutrient range
PLAGRON Terra Grow 10L
£69.50 incl. Vat
PLAGRON Terra Grow 10L is a concentrated mineral base nutrient designed for the vegetative stage, helping plants build strong, healthy growth in soil before moving into flowering.
- ✔ Mineral base nutrient for the grow phase
- ✔ Supports vigorous vegetative development
- ✔ Helps create a strong foundation before flowering
- ✔ Suitable for use with all soil mixes
- ✔ Can be used alongside liquid fertilisers and additives
- ✔ Supplied in a practical 10L container for regular feeding schedules
PLAGRON PUREZYM Enzyme Additive for Root Zone
Price range: £79.00 through £159.00 incl. Vat
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PLAGRON PUREZYM is an enzyme additive designed to help break down dead root material in the growing medium, supporting a cleaner root zone and improving the efficiency of your feeding programme. Available in 5L and 10L sizes, it is a practical choice for growers using regular nutrient schedules across larger gardens and grow spaces.
- ✔ Enzyme additive for use alongside your normal nutrient routine
- ✔ Helps break down dead root matter in the root zone
- ✔ Supports a cleaner and more active growing medium
- ✔ Suitable for use as part of wider feed and booster programmes
- ✔ Available in 5L and 10L options for different grow sizes
- ✔ Ideal for growers looking to maintain healthy root-zone conditions
PLAGRON Sugar Royal 5L
£249.00 incl. Vat
PLAGRON Sugar Royal 5L is a plant enhancer designed to support improved aroma and flavour in the final crop by supplying a carefully selected blend of amino acids, helping reduce the plant’s own energy demand during development.
- ✔ Enhancer formulated to support improved taste and smell of the end product
- ✔ Contains a unique blend of 18 different amino acids
- ✔ Helps reduce the energy plants use to produce these compounds naturally
- ✔ Supports efficient nutrient use during key growth and flowering stages
- ✔ Can help lower the risk of nutrient-related stress caused by higher plant demand
- ✔ Ideal for growers looking to improve final crop quality as part of a wider feeding programme
PLAGRON Power Roots Root Stimulator
Price range: £149.00 through £299.00 incl. Vat
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This product has multiple variants. The options may be chosen on the product page
PLAGRON Power Roots is a root stimulator designed to support strong early root development, improve plant establishment and help crops make better use of water and nutrients throughout the growing cycle.
- ✔ Root stimulator for use during early growth and transplant stages
- ✔ Helps encourage a healthy, active root zone
- ✔ Supports stronger plant establishment after potting on or moving plants
- ✔ Suitable for growers using nutrient programmes and booster products
- ✔ Available in 5L and 10L sizes to suit different grow room requirements
- ✔ Ideal for use as part of a complete PLAGRON feeding routine
PLAGRON Green Sensation 5L Bloom Booster
£370.00 incl. Vat
PLAGRON Green Sensation 5L is a concentrated bloom booster designed for use during the last four to six weeks of flowering, helping support strong flower development, improved taste and a firmer plant structure.
- ✔ Formulated for the final 4 to 6 weeks of the bloom phase
- ✔ Supports heavy flowering and productive crop development
- ✔ Helps encourage improved flavour and overall crop quality
- ✔ Contributes to a hardened cell structure for stronger plants
- ✔ Suitable for growers looking to enhance late flowering performance
- ✔ Large 5L size suited to regular or larger-scale feeding programmes
Aqualine EC Truncheon
£20.00 incl. Vat
The Aqualine EC Truncheon is a simple conductivity meter designed to help you check the nutrient strength of your hydroponic feed solution before and during plant growth.
- ✔ Measures EC to help monitor nutrient strength in solution
- ✔ Useful for checking feed levels before watering plants
- ✔ Helps you maintain more consistent nutrient management
- ✔ Suitable for hydroponic systems, reservoirs and hand-mixed feeds
- ✔ Handy tool for routine monitoring while plants are growing
- ✔ Ideal for growers building a reliable nutrient and pH management kit
Aqua Master Tools P50 Pro pH Temp Meter UK | Professional Waterproof pH & Temperature Meter
£60.00 incl. Vat
The Aqua Master Tools P50 Pro pH Temp Meter is a professional waterproof digital meter designed for accurately measuring pH and temperature in hydroponic nutrient solutions, reservoirs, water tanks, and grow systems. Featuring automatic temperature compensation, easy one-handed operation, and high-precision readings, the P50 Pro is ideal for hydroponics, coco, soil, and aquaponic growing environments.
- ✔ Measures pH and temperature accurately
- ✔ Professional waterproof digital meter
- ✔ Automatic temperature compensation (ATC)
- ✔ Easy 2-point automatic calibration
- ✔ Ideal for hydroponics, coco, soil & aquaponics
BEASTIE BLOOMZ Soluble Fertiliser for Flowering
Price range: £35.00 through £75.00 incl. Vat
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BEASTIE BLOOMZ is a high-phosphorus soluble fertiliser designed to support blossom development during the mid to late flowering stage in soil, soilless mixes, hydroponics and aeroponic systems.
- ✔ Soluble flowering fertiliser with an analysis of 0 - 50 - 30
- ✔ Formulated for mid-flowering through to late flowering support
- ✔ Suitable for soil, soilless mixes, hydroponics and aeroponic systems
- ✔ Designed to be used once buds have emerged
- ✔ Available in 453g and 907g pack sizes
- ✔ Practical choice for growers following a staged flowering feed programme
FoxFarm Cha Ching Soluble Fertilizer 907g
£99.50 incl. Vat
FoxFarm Cha Ching is a soluble late flowering fertilizer formulated to support plants from late bloom through harvest, with a high-phosphorus 9-50-10 analysis and added micronutrients.
- ✔ Designed for late flowering through harvest
- ✔ High-phosphorus 9-50-10 soluble fertilizer
- ✔ Includes FoxFarm micronutrient package
- ✔ Suitable for supporting fruiting and flowering stages
- ✔ Intended to follow earlier-stage bloom feeding programmes
- ✔ 907g pack size for repeated feed applications
EVOPONIC PK Bulk 1L Flowering Biostimulant
£49.50 incl. Vat
EVOPONIC PK Bulk 1L is a concentrated flowering biostimulant designed to support bloom development, help maximise flower sites and extend the flowering period as part of a balanced feeding programme.
- ✔ 3-in-1 concentrated flowering support formula
- ✔ Helps supplement nutrition during the flowering stage
- ✔ Designed to encourage fuller bloom development and flower formation
- ✔ Contains natural plant extract hormones
- ✔ True solution formula with no suspended insolubles
- ✔ Safe and natural formulation without PGRs
EVOPONIC FORCEFIELD Biostimulant Plant Additive
Price range: £29.00 through £109.00 incl. Vat
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EVOPONIC FORCEFIELD is a biostimulant plant additive made with natural plant extracts, designed to support stronger crops, improved nutrient uptake and better resilience in indoor growing systems. Available in 250ml and 1L bottles.
- ✔ Biostimulant formula with organically based ingredients
- ✔ Helps support plant resistance to common grow room stresses
- ✔ Encourages improved nutrient uptake when added to liquid feeds
- ✔ Provides a rich source of amino acids for ongoing plant support
- ✔ Concentrated and cost-effective for regular use
- ✔ Available in 250ml and 1L size options
EVOPONIC GOLIATH 1L Bloom Booster
£70.00 incl. Vat
EVOPONIC GOLIATH 1L is a late-flowering bloom booster designed to support flower bulking during the final weeks of the growing cycle using plant-based extracts and bioactivated potassium.
- ✔ Formulated for use in weeks 6 to 7 of flowering
- ✔ Helps support bulking and development in the final 3 weeks of growth
- ✔ Contains plant-sourced amino acids, humates, lignins and sugars
- ✔ Uses bioactivated potassium in thiosulphate and phosphite forms
- ✔ Based on natural plant extracts for late-stage feeding programmes
- ✔ Suitable for growers looking to enhance late bloom performance and crop quality
EVOPONIC Roxy 1L Flowering Enhancer
£85.00 incl. Vat
EVOPONIC Roxy 1L is a flowering enhancer designed to support early flower development in short grow cycles. Suitable for all systems, it is used from week 2 of flowering for a short application window to help encourage bigger, heavier early-formed flowers.
- ✔ Flowering enhancer for use from week 2 of flowering
- ✔ Designed for short grow cycles
- ✔ Suitable for all growing systems
- ✔ Helps stimulate flower bud formation at an important early stage
- ✔ Based on natural plant extracts
- ✔ Made without artificial PGRs
ecothrive Neutralise Tap Water Conditioner
Price range: £6.00 through £60.00 incl. Vat
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ecothrive Neutralise is a fast-acting tap water conditioner designed to instantly neutralise chlorine and chloramine, helping prepare water for use with microbial products, nutrient solutions and routine irrigation in soil, coco and hydroponic systems.
- ✔ Instantly targets chlorine and chloramine in tap water
- ✔ Helps prepare water before adding beneficial microbial products such as Biosys
- ✔ Suitable for soil, coco and hydroponic growing systems
- ✔ Can be used as a pre-treatment for irrigation water and nutrient solutions
- ✔ Concentrated formula used in very small amounts
- ✔ Available in 50ml and 1l sizes to suit small grows and larger setups
Bioponic HydroTops Leaf Feed
Price range: £22.00 through £69.00 incl. Vat
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HydroTops Bioponic Leaf Feed 1 Litre
Bioponic Leaf Feed is formulated to stimulate vigorous leaf growth and lateral branch development in flowering and fruiting plants.
When plants are growing strongly, they may not always uptake nutrients sufficiently via their roots, particularly if the plants have been subject to environmental stress. Foliar feeding the balanced nutrition of Bioponic Leaf Feed along with essential amino acids, enzymes and growth stimulants will help to overcome this issue and helps the plants achieve their full potential
When plants are growing strongly, they may not always uptake nutrients sufficiently via their roots, particularly if the plants have been subject to environmental stress. Foliar feeding the balanced nutrition of Bioponic Leaf Feed along with essential amino acids, enzymes and growth stimulants will help to overcome this issue and helps the plants achieve their full potential
Basic Use
For established plants, mix 100ml of Leaf Feed with 900ml of tepid water then allow to stand for 30 minutes before pouring the solution into a spray bottle.
Spray plant foliage until runoff, this can be done once or twice a week during the vegetative growth period.
For cuttings, seedlings and young plants use Leaf Feed at half strength, 50ml to 950ml of tepid water, stand for 30 minutes, then use as above.
Spray plant foliage until runoff, this can be done once or twice a week during the vegetative growth period.
For cuttings, seedlings and young plants use Leaf Feed at half strength, 50ml to 950ml of tepid water, stand for 30 minutes, then use as above.
Advanced Use
More experienced gardeners can use Leaf Feed as part of a 4 day combined foliar feeding programme:
Bioponic HydroTops Floral Boost
Price range: £70.00 through £275.00 incl. Vat
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Hydrotops Floral Boost for coco/hydroponics is a formula which enhances the levels of four key minerals, essential to profuse flower production later in a plants life cycle. As with all Hydrotops products Hydrotops Floral Boost promotes extreme nutrient assimilation, meaning your plants will take up every last drop of nutrition available and also contains no PGR's (plant growth hormone) in order to gain extra flowering weight, just quality raw bio-mineral ingredients.
- Boosts flower formation in the early to mid-flowering cycle.
- Increases the available levels of phosphorus, potassium, magnesium and ammoniacal nitrogen.
- Promotes maximum nutrient assimilation in the root zone.
- Combines perfectly with all other Hydrotops flowering products.
- Use with Top Heavy Crop and Triple F for enormous flower growth and astonishing yields.
- Contains no PGR's, only quality, raw bio-minerals.
Bioponic HydroTops Root Stimulator
Price range: £75.00 through £285.00 incl. Vat
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The foundation of any growing system whether it be hydroponic, coco or soil is the development of a large, fully functional root system. To grow a good shoot capable of bearing bountiful flowers or fruit requires a high quality root system. Whilst biOpOnic bactivator is the foundation of any exceptional root system biOpOnic Root Stimulator supplies the energy and organic stimulants to build on this foundation with outstanding results. It also distinctly increases nutrient uptake when used and it is common knowledge that the greater the nutrient intake the greater yield at harvest.
The development of a good working root system is essential for the best possible yields. By adding Root Stimulator to your nutrient program you will immediately see the results in terms of vigour and growth in your crop.
| Stage of growth | ml per litre |
| Propagation Period | 10 ml |
| Transplant / Hardening Off | 10 ml |
| Grow period | 5 to 10 ml |
| Bloom week 1 and 2 | 5 to 10 ml |
| Bloom week 3 and 4 | 3 to 5 ml |
Bioponic HydroTops Hydro Bloom A&B (Black Top) – Soft Water (Copy)
Price range: £50.00 through £185.00 incl. Vat
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Hydrotops Bloom is a two-part coco/hydroponic formula designed for the flowering stage of a plants life cycle.
It is at this stage of the cycle where plants build the necessary foundations to produce an abundant harvest.
Attention to the nutritional balance supplied during the grow period is essential.
These formulations ensure your plants are able to assimilate the correct balance and ratio of nutrition to produce a good branch structure to allow for the development of a maximum floral set during flowering.
The choice of chemical compounds and the correct ionic profile of the nutrient ensure a stable pH level throughtout the life of the nutrient solution.
Bioponic HydroTops Hydro Grow A&B (Black Top) – Soft Water
Price range: £50.00 through £185.00 incl. Vat
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Hydrotops Grow nutrient concentrates are formulated for the needs of flowering and fruit bearing plants during the vegetative stage of the cultivation cycle.
It is at this stage of the cycle where plants build the necessary foundations to produce an abundant harvest.
Attention to the nutritional balance supplied during the grow period is essential.
These formulations ensure your plants are able to assimilate the correct balance and ratio of nutrition to produce a good branch structure to allow for the development of a maximum floral set during flowering.
The choice of chemical compounds and the correct ionic profile of the nutrient ensure a stable pH level throughtout the life of the nutrient solution.
Bioponic HydroTops Coco Bloom A&B (Green Top) – Soft Water
Price range: £50.00 through £185.00 incl. Vat
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Bioponic Coco Bloom A+B from Hydrotops is a concentrated nutrients formula developed to meet the needs of flowering and fruit bearing plants grown in Coco Coir during the Flowering stage of the cultivation cycle.
The plants nutritional requirements change slowly over the first three weeks of the bloom period. By supplying the correct nutrition value at this important time, your plants growth and development remains optimum, producing greater yields and healthier plants.
The choice of chemical compounds and the correct ionic profile of the nutrient ensure a stable pH level throughout the life of the nutrient solution.
Bioponic Coco Bloom is designed to be mixed with Hydrotops Bioponic Coco Grow during the change from grow to bloom (First 3 weeks of bloom). Bloom week 1 = 75% Bioponic Grow and 25% Bioponic Bloom. Bloom week 2 = 50% Bioponic Grow – 50% Bioponic Bloom. Bloom week 3 = 25% Bioponic Grow – 75% Bioponic Bloom. Bloom week 4 = 100% Bioponic Bloom
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:
- Grow lights to support plant growth and flowering
- Grow tents and sheeting to create a controlled environment
- Fans, filters and odour control to manage temperature and airflow
- Grow room tools to monitor pH, EC and feeding accuracy
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:
- Understanding the Role of Nutrients in Hydroponic Gardening
- The Role of pH and EC in Maintaining Plant Health in Hydroponic Systems
- The Ultimate Guide to Understanding Plant Nutrient Needs
- Coco-Coir Grow Guide – Top Tips and Nutrients for Growing in Coco
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.
