Additives
At The Greenhouse Effect we stock a large selection of additives and nutrients for hydroponic gardening.
If you need any help please call us on 01908 585 283, our highly knowledgeable staff will be happy to assist you.
RAW Terpz
Original price was: £14.99 – £44.99Price range: £14.99 through £44.99. Price range: £13.49 through £40.49Current price is: £13.49 – £40.49Price range: £13.49 through £40.49.RAW Terpz
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Techboost EX:EL Foliar Spray
Original price was: £18.99 – £52.99Price range: £18.99 through £52.99. Price range: £17.09 through £47.69Current price is: £17.09 – £47.69Price range: £17.09 through £47.69.Techboost EX:EL Foliar Spray
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Veg + Bloom Push Foliar 1 Litre
Original price was: £84.99.£76.49Current price is: £76.49.Veg + Bloom Push Foliar 1 Litre
Ecothrive Bio-Blend
Price range: £10.79 through £53.99Ecothrive Bio-Blend
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Ionic Flower Boost 1 Litre
Original price was: £74.99.£67.49Current price is: £67.49.Ionic Flower Boost 1 Litre
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Ionic Root Boost 1 Litre
Original price was: £94.99.£85.49Current price is: £85.49.Ionic Root Boost 1 Litre
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Athena Blended Starter Kit
Original price was: £123.99.£111.59Current price is: £111.59.Athena Blended Starter Kit
Veg + Bloom Shine Clean
Original price was: £38.99 – £749.99Price range: £38.99 through £749.99. Price range: £35.09 through £674.99Current price is: £35.09 – £674.99Price range: £35.09 through £674.99.Veg + Bloom Shine Clean
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Xtreme Gardening Azos
Original price was: £36.99 – £64.99Price range: £36.99 through £64.99. Price range: £33.29 through £58.49Current price is: £33.29 – £58.49Price range: £33.29 through £58.49.Xtreme Gardening Azos
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Psycho Myco Monster Microbes
Original price was: £59.99 – £189.99Price range: £59.99 through £189.99. Price range: £53.99 through £170.99Current price is: £53.99 – £170.99Price range: £53.99 through £170.99.Psycho Myco Monster Microbes
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Psycho Myco Momma Myco
Original price was: £42.99 – £99.99Price range: £42.99 through £99.99. Price range: £38.69 through £89.99Current price is: £38.69 – £89.99Price range: £38.69 through £89.99.Psycho Myco Momma Myco
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Psycho Myco Grow Balls
Original price was: £42.99 – £89.99Price range: £42.99 through £89.99. Price range: £38.69 through £80.99Current price is: £38.69 – £80.99Price range: £38.69 through £80.99.Psycho Myco Grow Balls
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Canna Silica 1 Litre
Original price was: £17.99.£16.19Current price is: £16.19.Canna Silica 1 Litre
Moonshine Sunshine RTU 1 Litre
Original price was: £13.99.£12.59Current price is: £12.59.Moonshine Sunshine RTU 1 Litre
House and Garden Algen Extract
Original price was: £19.99 – £64.99Price range: £19.99 through £64.99. Price range: £17.99 through £58.49Current price is: £17.99 – £58.49Price range: £17.99 through £58.49.House and Garden Algen Extract
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Terra Aquatica Calcium Magnesium
Original price was: £12.99 – £32.99Price range: £12.99 through £32.99. Price range: £11.69 through £29.69Current price is: £11.69 – £29.69Price range: £11.69 through £29.69.Terra Aquatica Calcium Magnesium
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Vitalink Foliar 5 Litre
Original price was: £69.99.£62.99Current price is: £62.99.Vitalink Foliar 5 Litre
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Dutch Pro Quantum Massive Powdershot
Original price was: £13.99 – £159.99Price range: £13.99 through £159.99. Price range: £12.59 through £143.99Current price is: £12.59 – £143.99Price range: £12.59 through £143.99.Dutch Pro Quantum Massive Powdershot
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Canna Bio Rhizotonic
Original price was: £12.99 – £29.99Price range: £12.99 through £29.99. Price range: £11.69 through £26.99Current price is: £11.69 – £26.99Price range: £11.69 through £26.99.Canna Bio Rhizotonic
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Canna Bio Boost
Original price was: £19.99 – £49.99Price range: £19.99 through £49.99. Price range: £17.99 through £44.99Current price is: £17.99 – £44.99Price range: £17.99 through £44.99.Canna Bio Boost
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Mammoth P by Growcentia
Original price was: £79.99 – £189.99Price range: £79.99 through £189.99. Price range: £71.99 through £170.99Current price is: £71.99 – £170.99Price range: £71.99 through £170.99.Mammoth P by Growcentia
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Intense Nutrients Fem Guard
Original price was: £24.99 – £99.99Price range: £24.99 through £99.99. Price range: £22.49 through £89.99Current price is: £22.49 – £89.99Price range: £22.49 through £89.99.Intense Nutrients Fem Guard
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Diamond Density
Original price was: £39.99 – £119.99Price range: £39.99 through £119.99. Price range: £35.99 through £107.99Current price is: £35.99 – £107.99Price range: £35.99 through £107.99.Diamond Density
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FloraMax Growth-XS
Original price was: £95.99 – £1,151.99Price range: £95.99 through £1,151.99. Price range: £86.39 through £1,036.79Current price is: £86.39 – £1,036.79Price range: £86.39 through £1,036.79.FloraMax Growth-XS
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Density Weight Finisher 5 Litre
Original price was: £199.99.£179.99Current price is: £179.99.Density Weight Finisher 5 Litre
Plagron Pure Zym
Original price was: £19.99 – £89.99Price range: £19.99 through £89.99. Price range: £17.99 through £80.99Current price is: £17.99 – £80.99Price range: £17.99 through £80.99.Plagron Pure Zym
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Plant Magic Water Soluble Mycorrhizal
Original price was: £26.99 – £113.99Price range: £26.99 through £113.99. Price range: £24.29 through £102.59Current price is: £24.29 – £102.59Price range: £24.29 through £102.59.Plant Magic Water Soluble Mycorrhizal
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Grow Genius Water Genius 100ml
Original price was: £24.99.£22.49Current price is: £22.49.Grow Genius Water Genius 100ml
Atami ATA Clean
Original price was: £19.99 – £89.99Price range: £19.99 through £89.99. Price range: £17.99 through £80.99Current price is: £17.99 – £80.99Price range: £17.99 through £80.99.Atami ATA Clean
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Field Marshall Bliss Bud 5 Litre
Original price was: £149.99.£134.99Current price is: £134.99.Field Marshall Bliss Bud 5 Litre
Super Boost Foliar Spray
Original price was: £26.99 – £65.99Price range: £26.99 through £65.99. Price range: £24.29 through £59.39Current price is: £24.29 – £59.39Price range: £24.29 through £59.39.Super Boost Foliar Spray
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New Millenium Winter Frost
Original price was: £49.99 – £154.99Price range: £49.99 through £154.99. Price range: £44.99 through £139.99Current price is: £44.99 – £139.99Price range: £44.99 through £139.99.New Millenium Winter Frost
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New Millenium Ruby Ful#$% 1 Litre
Original price was: £29.99.£26.99Current price is: £26.99.New Millenium Ruby Ful#$% 1 Litre
Plagron Calmag Pro
Original price was: £19.99.£17.99Current price is: £17.99.Plagron Calmag Pro
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