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

Advanced Nutrients CarboLoad

£17.49

SoilCocoHydro

BioGreen X-Force

£36.99

SoilCocoHydro

Bloom - Pre

£36.95

SoilCocoHydro

CX Mighty Growth Enhancer

£18.45

SoilCocoHydro

Dutch Pro Leaf Green

£6.99

SoilCocoHydro

Evoponic Elixir Steroids

£53.49

SoilCocoHydro

Growth Technology Formulex

£5.49

SoilCocoHydro

Moonshine Nutrient Enhancer

£28.95

SoilCocoHydro

Plant Detonator

£26.49

SoilCocoHydro

Plant Vitality Holy Grail

£19.49

SoilCocoHydro

Remo Magnifical (Calmag)

£8.95

SoilCocoHydro

VitaLink Plant Start

£5.49

Foliar sprays

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

BioBizz Leaf Coat

£8.49

SoilCocoHydro

House & Garden Magic Green Foliar Tonic

£17.95

SoilCocoHydro

Hydrotops Leaf Feed Foliar Spray

£25.00

SoilCocoHydro

Maven Elicitex Mist Defence Bio stimulant

£29.49

SoilCocoHydro

Optic Foliar Rev / Evios

£55.95

SoilCocoHydro

Optic Foliar Transport

£22.80

SoilCocoHydro

Optic Foliar Watts

£7.95

SoilCocoHydro

Plagron Vita Race Iron Foliar Spray for Growth

£9.49

SoilCocoHydro

Plagron Vita Start Foliar Growth Stimulator Spray

£13.95

SoilCocoHydro

TechBoost EX:EL Foliar Spray

£7.90

SoilCocoHydro

VEG+BLOOM Push Foliar Spray for Stronger Growth

£29.49

Seaweed, fish and organic tonics

Plant and marine extracts rather than mineral salts.

SoilCocoHydro

BioBizz Acti-Vera

£5.99

SoilCocoHydro

BioBizz Alg-A-Mic

£12.99

SoilCocoHydro

BioBizz Fish Mix

£9.99

SoilCocoHydro

Ecothrive Flourish Seaweed Biostimulant

£8.49

Organic

Emerald Harvest Emerald Goddess Organic Plant Tonic

£39.49

SoilCocoHydro

House & Garden Algen Extract Norwegian Kelp Plant Tonic

£19.49

Organic

Plagron Fish Force Organic Growth Nutrient

£11.95

SoilCocoHydro

RAW Kelp

£17.08

SoilCocoHydro

Remo Velokelp

£22.49

SoilCocoHydro

Supreme Gardener Atlantic Fish Fertiliser

£14.95

Vitamins, aminos and microbes

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

SoilCocoHydro

Advanced Nutrients B-52

£189.99

SoilCocoHydro

BioBizz Bio-Heaven

£49.95

SoilCocoHydro

Grotek Vitamax Plus

£21.99

SoilCocoHydro

House & Garden Amino Treatment

£39.49

SoilCocoHydro

Mammoth P Microbial Inoculant

£47.49

SoilCocoHydro

Mills Vitalize

£49.49

SoilCocoHydro

Superthrive Essential Vitamin Solution Plant Supplement

£11.69

Silicon and stem strength

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

SoilCocoHydro

Aptus Regulator Plant Strengthener and Stress Booster

£18.49

SoilCocoHydro

Grow Genius Mono Silicic Acid Silicon Supplement

£20.49

SoilCocoHydro

Growth Technology Liquid Silicon

£3.49

SoilCocoHydro

Shogun Silicon

£4.49

The full range

SoilCocoHydro

Advanced Hydroponics of Holland Growth/Bloom Excellarator

£23.95

SoilCocoHydro

Atami ATA XL

£15.00

Soil

Atami B'Cuzz Soil Booster Universal

£24.90

SoilCocoHydro

BioBizz Juju Royal Green Mystic

£9.45

SoilCocoHydro

Fox Farm Bush Doctor Boomerang

£20.95

SoilCocoHydro

Fox Farm Gringo Rasta Lickety Split

£21.95

SoilCocoHydro

Fox Farm Gringo Rasta Super Sonic Plant Tonic

£21.95

SoilCocoHydro

Green Planet Ocean Magic

£26.90

SoilCocoHydro

Green Planet Vitathrive

£14.90

SoilCocoHydro

Grotek Insta-Green

£14.95

SoilCocoHydro

Grotek Monster Grow Pro

£9.95

SoilCocoHydro

Indica Nutrients Hindu Kush

£29.95

SoilCocoHydro

Plant Vitality Anabolic Plant Roids Concentrate

£19.95

SoilCocoHydro

Plant Vitality Anabolic Plant Roids RTU

£14.35

Coco

Plant Vitality Coco Grow

£12.95

Hydro

Plant Vitality Hydro Grow

£12.95

Soil

Plant Vitality Soil Grow

£17.85

Out of stock

RAW ominA by NPK Industries

£16.95

Organic

Terra Aquatica Pro Organic Grow Vegetative Organic Nutrient

£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.