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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.
BIOBIZZ FISH MIX
Price range: £15.00 through £40.00 incl. Vat
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PLAGRON POWER BUDS 5L
£120.00 incl. Vat
PLAGRON TERRA BLOOM
Price range: £35.00 through £100.00 incl. Vat
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PLAGRON TERRA GROW 10L
£69.50 incl. Vat
Terra Grow is a highly concentrated mineral base plant nutrient for use during the plant’s grow phase. This liquid fertilizer provides optimum nutrition during the growth phase. It provides a solid foundation for the plant to flower profusely in its subsequent phase. Terra Grow is suitable for all soil mixes and can be used in conjunction with all liquid fertilizers and additives.
PLAGRON PUREZYM
Price range: £79.00 through £159.00 incl. Vat
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PLAGRON SUGAR ROYAL 5L
£249.00 incl. Vat
Sugar Royal is an enhancer, with the main goal to get an improved taste and smell of the end product. There are 20 different essential amino acids, all of which a plant can naturally produce. However, synthesizing these amino acids consumes a significant amount of the plant's energy and nutrients. Sugar Royal supplies a unique blend of 18 different amino acids, relieving the plant from the burden of producing these compounds on its own. This conservation of energy and nutrients leads to a reduced risk of nutrient deficiencies, which results in a higher end quality.
PLAGRON POWER ROOTS
Price range: £149.00 through £299.00 incl. Vat
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PLAGRON GREEN SENSATION 5L
£370.00 incl. Vat
AQUALINE EC TRUNCHEON
£20.00 incl. Vat
AQUA MASTER PH TEMP METER P50 PRO 2
£60.00 incl. Vat
- IP67 waterproof rated
- Large, easy to read, digital display
- Fully calibrated
- Replaceable probes
- Calibration indicator
- 2 decimal places
- AAA batteries
How does the meter work?
- Prior first usage – soak your pH meter in tap water for 12 hours.
- Remove the protective cover.
- Gently clean the electrode with distilled water and dry it off.
- Press the On/off button to start the meter.
- Insert the meter upright into the solution up to the edge and stir gently. Wait a few seconds for the correct value to appear on the display.
- Press the C/F button to switch between Celsius and Fahrenheit.
- Rinse the electrode with water after use and press the On/off button to turn off the meter.
BEASTIE BLOOMZ
Price range: £35.00 through £75.00 incl. Vat
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BEASTIE BLOOMZ® SOLUBLE FERTILIZER
0 - 50 - 30
Beastie Bloomz® is a high-phosphorus soluble fertilizer specially formulated to support blossom development during mid to late flowering.  For use in soilless mixes, soils, hydroponics, and aeroponic systems.
Garden tip: Start with Open Sesame® in the fifth or sixth week of a plant’s life. Once buds emerge, feed your plants with Beastie Bloomz® every other watering according to package directions or our Feeding Schedule.  In the eighth to ninth week of the plants life cycle, switch to Cha Ching®.
CHA CHING 907G
£99.50 incl. Vat
CHA CHING® SOLUBLE FERTILIZER
9 - 50 - 10
Every stage of the growing cycle demands optimal nutrition. Cha Ching® is a high-phosphorus fertilizer that is designed to help support late stage fruiting processes. Even better, we’ve included the micronutrient package that FoxFarm is known for.
Garden tip: Start with Open Sesame® in the fifth or sixth week of a plant’s life. Once bud set begins feed with Beastie Bloomz® for a two week period. After flowers are fully formed, switch to Cha Ching® and continue through harvest. Feed with every other watering.
For best results, start seeds in our Light Warrior® Agro-Ponic® Seed Starter, and use our Ocean Forest® Potting Soil for container plants.
EVOPONIC PK BULK 1L
£49.50 incl. Vat
pk bulk
For smashing blooms
A 3-in-1 concentrated formula
Supplement nutrition in flowering plants, maximises flower buds and enhances flowers with natural plant extract hormones.
PK Bulk is a biostimulant that enhances and extends the flowering period. It has become the product-to-beat in indoor gardening, more concentrated than any competitor product yet still a true solution, with no suspended insolubles.
A safe and natural product without PGR’s, it is uniquely concentrated in order to yield unstoppable results.
EVOPONIC FORCEFIELD
Price range: £29.00 through £109.00 incl. Vat
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force field
Biostimulant
A unique blend of natural plant extracts which when included in liquid feeds increases pest and disease resistance and enhances nutrient uptake.
Think of it as a preventative that will ensure that pests can never become enough of an issue to jeopardise the productivity of your indoor garden. At the same time, Force Field taps into plants’ bio-chemical systems to trigger a massive elevation in the uptake of nutrients, which leads to a multitude of positive effects for your indoor garden.
– Wards off grow-room pests, protecting against damage
– Provides a rich source of amino acids
– Improves the uptake of nutrients to the plant
– Strengthens plants against external threats
– Cost-effective concentrated formula – lasts for a long time
– Organically based ingredients
EVOPONIC GOLIATH 1L
£70.00 incl. Vat
For beasting blooms
A bloom boosting formula (for weeks 6-7)
Plant-sourced amino acids, humates, lignins and sugars to enhance yield, health and flavour.
Specifically designed for use late-on in the growing cycle, it stimulates bulking up of flower components over their final 3 weeks of growth.
A safe, natural material that’s based on plant extracts. Using bioactivated Potassium in both Thiosulphate and Phosphite forms, combined with specific amino acids and other plant extracts.
EVOPONIC ROXY 1L
£85.00 incl. Vat
roxy
Stimulate growth
A stimulation formula Suitable for all systems.
Stimulate and enhance flowering and improve size and quality of yield in short grow cycles.
Roxy is an enhancer that can be employed from week 2 of flowering for a maximum of 10 days.
Designed to enhance flowering when used during this specific period. A safe, natural material that’s based on plant extracts – without artificial PGRs (should be acceptable for Organic certification).
Roxy pushes flower bud formation to the limit at its vital early stage of growth, meaning earlyformed flowers end up bigger and heavier.
ecothrive Neutralise
Price range: £6.00 through £60.00 incl. Vat
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Neutralises Chlorine and Chloramine Instantly
Just a few drops of Neutralise and your tap water is ready for adding microbial products such as Biosys. It can also be used with soil, coco and hydroponic systems as a pre-treatment for irrigation water and nutrient solutions.
Neutralise has been formulated to actively target the presence of chlorine and chloramine in tap water. Chlorine and chloramine are powerful disinfectants that are added to water supplies throughout the UK to kill potentially harmful bacteria. No doubt you will have smelt chlorine when running the tap or having a shower.
Chlorine alone in tap water can create some unwanted harmful by-products so water companies are moving towards a more stable version of chlorine known as chloramine. The procedure involves mixing ammonia into chlorinated water. Chloramine is far more persistent than chlorine alone, making it more effective at killing bacteria right to the point of drinking your glass of tap water, or watering your plants.
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
Bioponic HydroTops Coco Grow A&B (Green Top) – Soft Water
Price range: £50.00 through £185.00 incl. Vat
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This product has multiple variants. The options may be chosen on the product page
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 Coco Grow is designed to be mixed with Hydrotops Bioponic Coco Bloom 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.
