Vegetative boosters

For the growth stage.

Additives for the weeks before flowering starts, when the plant is building leaf and stem. Most work on nitrogen uptake, cell strength or the biology around the roots rather than adding much NPK of their own.

Nothing matches all of those filters.

Growth boosters

The general-purpose bottles that go in the tank through the growth stage.

SoilCocoHydro

Plant Detonator – Root & Growth Enhancer

£26.49

SoilCocoHydro

VitaLink Plant Start – Propagation Feed for Cuttings

£5.49

SoilCocoHydro

Evoponic Elixir Steroids – Rapid Growth Booster

£53.49

SoilCocoHydro

Moonshine Nutrient Enhancer – Root & Uptake Booster

£28.95

SoilCocoHydro

CX Mighty Growth Enhancer – Canadian Xpress Veg Additive

£18.45

SoilCocoHydro

Remo Magnifical CalMag – Chelated Calcium & Magnesium

£8.95

SoilCocoHydro

Advanced Nutrients CarboLoad – Carbohydrate Supplement

£17.49

Foliar sprays

Fed through the leaf, which gets past a root zone that is not keeping up.

SoilCocoHydro

Plagron Vita Start – Foliar Growth Stimulator Spray

£13.95

SoilCocoHydro

Plant Vitality Holy Grail – Silica Foliar Spray

£19.49

SoilCocoHydro

Optic Foliar Transport – Wetting Agent and Spreader

£22.80

SoilCocoHydro

TechBoost EX:EL Foliar Spray – Leaf Feed for Veg Growth

£7.90

SoilCocoHydro

Optic Foliar Watts – Light Energy Foliar Spray

£7.95

SoilCocoHydro

House & Garden Magic Green Foliar Tonic – Foliar Feed

£17.95

SoilCocoHydro

VEG+BLOOM Push – Silica & Calcium Foliar Spray

£29.49

SoilCocoHydro

Plagron Vita Race – Iron Foliar Spray for Growth

£14.99

SoilCocoHydro

Optic Foliar REV / EVIOS – Foliar Feed & Pest Spray

£55.95

SoilCocoHydro

Hydrotops Leaf Feed Foliar Spray – Bio-Organic Veg Feed

£25.00

SoilCocoHydro

Maven Elicitex Mist Defence Biostimulant – Foliar Spray

£29.49

SoilCocoHydro

Remo Velokelp – Sea Kelp Root & Foliar Stimulant

£22.49

SoilCocoHydro

Dutch Pro Leaf Green – Ready-to-Use Foliar Feed Spray

£6.99

Seaweed, fish and organic tonics

Plant and marine extracts rather than mineral salts.

Organic

BioBizz Acti-Vera – Organic Aloe Vera Plant Activator

£5.99

Organic

BioBizz Alg-A-Mic – Organic Seaweed Vitality Booster

£12.99

SoilCocoHydro

House & Garden Algen Extract – Norwegian Kelp Tonic

£19.49

Organic

Growth Technology Formulex – Organic Kelp Seedling Feed

£5.49

SoilCocoHydro

Indica Nutrients Hindu Kush – Seaweed Growth Stimulant

£29.95

SoilCocoHydro

RAW Kelp – Ascophyllum Nodosum Biostimulant

£17.08

SoilCocoHydro

Green Planet Ocean Magic – Sea Kelp Vegetative Additive

£26.90

Organic

Supreme Gardener Atlantic Fish Fertiliser – Organic Feed

£25.49

Organic

Plagron Fish Force – Organic Growth Nutrient

£11.95

Organic

Emerald Harvest Emerald Goddess – Organic Plant Tonic

£39.49

SoilCocoHydro

Ecothrive Flourish – Seaweed Biostimulant

£8.49

Organic

BioBizz Fish Mix – Organic Veg Fertiliser NPK 5-1-4

£9.99

Vitamins, aminos and microbes

For stress, transplanting and anything else that has checked the plant.

SoilCocoHydro

Mammoth P Microbial Inoculant – Phosphorus Booster

£78.49

Out of stock

RAW ominA – Vegan Nitrogen Amino Acid Supplement

£16.95

SoilCocoHydro

Green Planet Vitathrive – Vitamin & Mineral Additive

£14.90

SoilCocoHydro

Superthrive Essential Vitamin Solution Plant Supplement

£11.69

SoilCocoHydro

Advanced Nutrients B-52 – Vitamin & Biostimulant Boost

£9.85

SoilCocoHydro

Grotek Vitamax Plus – Growth and Flowering Supplement

£21.99

Organic

BioBizz Bio-Heaven – Organic Amino Acid Plant Tonic

£49.95

SoilCocoHydro

Mills Vitalize – Mono-Silicic Acid Plant Supplement

£49.49

Silicon and stem strength

Stiffer cell walls, which matters most under strong light and heavy air movement.

SoilCocoHydro

SHOGUN Silicon – Potassium Silicate Plant Strengthener

£4.49

SoilCocoHydro

Growth Technology Liquid Silicon – Silica Plant Supplement

£3.49

SoilCocoHydro

Grow Genius Mono Silicic Acid – Silicon Supplement

£20.49

SoilCocoHydro

House & Garden Amino Treatment – Silicate Stimulator

£39.49

SoilCocoHydro

BioGreen X-Force – Concentrated Silicon Supplement

£36.99

The full range

SoilCocoHydro

Atami ATA XL – All-Cycle Growth & Flowering Booster

£15.00

Coco

Plant Vitality Coco Grow – Nano Vegetative Base Feed

£12.95

SoilCocoHydro

Aptus Regulator – Growth & Flowering Booster

£18.49

SoilCocoHydro

Bloom Pre – Advanced Floriculture Internode Shortener

£36.95

SoilCocoHydro

Hy-Gen NITRO-K – Nitrogen and Potassium Supplement

£94.49

SoilCocoHydro

Grotek Monster Grow Pro – Vegetative Growth Booster

£9.95

SoilCocoHydro

Grotek Insta-Green – Fast-Acting Nitrogen Tonic

£14.95

SoilCocoHydro

Fox Farm Gringo Rasta Lickety Split – Veg Nutrient

£21.95

SoilCocoHydro

Fox Farm Bush Doctor Boomerang – Plant Recovery Formula

£20.95

SoilCocoHydro

Fox Farm Gringo Rasta Super Sonic Plant Tonic – NPK 5-0-1

£21.95

Soil

Atami B'Cuzz Soil Booster Universal – Veg-Phase Additive

£24.90

Organic

BioBizz Juju Royal Green Mystic – Organic Algae Stimulant

£9.45

SoilCocoHydro

Plant Vitality Anabolic Plant Roids RTU – Growth Enhancer

£14.35

SoilCocoHydro

Plant Vitality Anabolic Plant Roids Concentrate

£19.95

Soil

Plant Vitality Soil Grow – Nano Vegetative Base Feed

£17.85

Hydro

Plant Vitality Hydro Grow – Nano Vegetative Base Feed

£12.95

SoilCocoHydro

Advanced Hydroponics of Holland Growth/Bloom Excellarator

£23.95

Organic

Terra Aquatica Pro Organic Grow – Vegetative Feed for Coco

£9.49

Vegetative boosters for stronger roots and faster growth

Veg boosters sit alongside your base feed rather than replacing it, adding the amino acids, humic acid, silicon or beneficial microbes that push root mass, stem thickness and node spacing before you flip to flower. The bigger and more even the plant is going into flower, the more it can carry through to harvest, which is why most growers add at least one veg-stage booster even on a tight budget.

Mycorrhizal inoculants like Great White only work if applied early — they colonise the root zone as roots form, so dose at transplant rather than mid-veg. Silicon products such as Growth Technology Liquid Silicon thicken cell walls and are worth running from week one through to the last week of flower, typically 0.5 to 1ml/L. Amino and vitamin blends like House & Garden Amino Treatment or BioBizz Alg-A-Mic reduce transplant stress and are handy after any repot.

Brands and ranges we stock

  • BioBizz — Acti-Vera, Alg-A-Mic, Bio-Heaven, Fish Mix and Leaf Coat, all certified organic and gentle enough to use every watering.
  • Advanced Nutrients and Growth Technology — CarboLoad for feeding root microbes sugars, and Formulex or Liquid Silicon for structural strength.
  • Grotek, BioGreen and Evoponic — Vitamax Plus, X-Force and Elixir Steroids, high-analysis concentrates where a smaller dose goes further.

Coco growers should keep an eye on total EC when stacking more than one booster on top of a base feed — add one at a time and watch run-off before layering a second. Our feeding in coco guide has target EC ranges by week. Pair any veg booster with a base feed from the same or a compatible range, and see root stimulators for products aimed specifically at clones and transplants rather than established plants.

Delivery is free on UK orders over £60, Express Delivery available. Questions on dosing? Call 020 3488 0419, six days a week.