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.
Buddhas Tree PK 9-18
Original price was: £14.99 – £299.99Price range: £14.99 through £299.99. Price range: £13.49 through £269.99Current price is: £13.49 – £269.99Price range: £13.49 through £269.99.Buddhas Tree PK 9-18
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Canna Boost Accelerator
Original price was: £23.99 – £359.99Price range: £23.99 through £359.99. Price range: £21.59 through £323.99Current price is: £21.59 – £323.99Price range: £21.59 through £323.99.Canna Boost Accelerator
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This product has multiple variants. The options may be chosen on the product page
Canna PK 13/14
Original price was: £4.99 – £47.99Price range: £4.99 through £47.99. Price range: £4.49 through £43.19Current price is: £4.49 – £43.19Price range: £4.49 through £43.19.Canna PK 13/14
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Canna Rhizotonic
Original price was: £13.99 – £219.99Price range: £13.99 through £219.99. Price range: £12.59 through £197.99Current price is: £12.59 – £197.99Price range: £12.59 through £197.99.Canna Rhizotonic
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Dutchpro Explode
Original price was: £29.99 – £1,099.99Price range: £29.99 through £1,099.99. Price range: £26.99 through £989.99Current price is: £26.99 – £989.99Price range: £26.99 through £989.99.Dutchpro Explode
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Dutchpro Take Root
Original price was: £19.99 – £349.99Price range: £19.99 through £349.99. Price range: £17.99 through £314.99Current price is: £17.99 – £314.99Price range: £17.99 through £314.99.Dutchpro Take Root
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Ecothrive Neutralise
Original price was: £5.99 – £179.99Price range: £5.99 through £179.99. Price range: £5.39 through £161.99Current price is: £5.39 – £161.99Price range: £5.39 through £161.99.Ecothrive Neutralise
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Field Marshal Flower Bomb
Original price was: £102.99 – £474.99Price range: £102.99 through £474.99. Price range: £92.69 through £427.49Current price is: £92.69 – £427.49Price range: £92.69 through £427.49.Field Marshal Flower Bomb
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House and Garden Roots Excelurator
Original price was: £39.99 – £579.99Price range: £39.99 through £579.99. Price range: £35.99 through £521.99Current price is: £35.99 – £521.99Price range: £35.99 through £521.99.House and Garden Roots Excelurator
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Mills Start – Rooting Stimulant
Original price was: £15.99 – £154.99Price range: £15.99 through £154.99. Price range: £14.39 through £139.49Current price is: £14.39 – £139.49Price range: £14.39 through £139.49.Mills Start – Rooting Stimulant
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Plant Magic Magne Cal
Original price was: £15.99 – £109.99Price range: £15.99 through £109.99. Price range: £14.39 through £98.99Current price is: £14.39 – £98.99Price range: £14.39 through £98.99.Plant Magic Magne Cal
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Xtreme Gardening Mykos
Original price was: £24.99 – £39.99Price range: £24.99 through £39.99. Price range: £22.49 through £35.99Current price is: £22.49 – £35.99Price range: £22.49 through £35.99.Xtreme Gardening Mykos
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This product has multiple variants. The options may be chosen on the product page