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.
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.
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This product has multiple variants. The options may be chosen on the product page
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.
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This product has multiple variants. The options may be chosen on the product page
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.
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This product has multiple variants. The options may be chosen on the product page
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.
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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.
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This product has multiple variants. The options may be chosen on the product page
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.
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This product has multiple variants. The options may be chosen on the product page
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.
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This product has multiple variants. The options may be chosen on the product page
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.
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This product has multiple variants. The options may be chosen on the product page
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.
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This product has multiple variants. The options may be chosen on the product page
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.
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This product has multiple variants. The options may be chosen on the product page
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.
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This product has multiple variants. The options may be chosen on the product page
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.
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This product has multiple variants. The options may be chosen on the product page