For Sale UK

Potassium nitrate

4

Potassium nitrate for sale on largest auction and classifieds sites

Home / Plants & Gardening / Potassium nitrate for sale – 96 used, around £11 | For Sale UK
Elixir gardens high - gardens, potassium

Elixir gardens high - gardens, potassium

£12.25
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Houseplant food concentrate - food,

Houseplant food concentrate - food,

£6.99
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Levington sulphate potash - levington, of

Levington sulphate potash - levington, of

£10.95
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Carnivorous plant food spray - carnivorous,

Carnivorous plant food spray - carnivorous,

£9.99
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Growmore special blend - growmore, 7-7-7

Growmore special blend - growmore, 7-7-7

£9.99
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Ivisons 696 pre - pre, seed

Ivisons 696 pre - pre, seed

£39.99
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Westland sulphate potash - sulphate,

Westland sulphate potash - sulphate,

£10.95
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Bat guano fertiliser organic - guano,

Bat guano fertiliser organic - guano,

£2.49
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Levington sulphate potash - of,

Levington sulphate potash - of,

£9.99
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Vitax blood fish - fish, &

Vitax blood fish - fish, &

£10.99
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Liquid lawn feed - 3, x

Liquid lawn feed - 3, x

£7.99
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Liquid seaweed fertiliser - seaweed,

Liquid seaweed fertiliser - seaweed,

£23.99
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Osmocote pro m - 12-14,

Osmocote pro m - 12-14,

£4.29
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Baby bio concentrated citrus - concentrated,

Baby bio concentrated citrus - concentrated,

£2.19
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Gardennova peace lily - gardennova,

Gardennova peace lily - gardennova,

£8.88
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Biobizz bio bloom - bloom,

Biobizz bio bloom - bloom,

£12.15
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Easy life potassium - life, 250ml

Easy life potassium - life, 250ml

£8.88
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Bat guano fertiliser organic - fertiliser,

Bat guano fertiliser organic - fertiliser,

£2.49
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Growth technology plant food - plant,

Growth technology plant food - plant,

£6.45
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Miracle gro all purpose - gro,

Miracle gro all purpose - gro,

£7.99
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Osmocote slow release - osmocote,

Osmocote slow release - osmocote,

£22.29
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Levington sulphate potash - levington, of

Levington sulphate potash - levington, of

£9.89
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Liquid seaweed fertiliser 20l - liquid,

Liquid seaweed fertiliser 20l - liquid,

£53.99
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Dried blood meal - dried,

Dried blood meal - dried,

£2.50
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Osmocote pro slow release - pro,

Osmocote pro slow release - pro,

£18.99
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Chempak tomato plant - chempak,

Chempak tomato plant - chempak,

£10.99
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Westland natural plant food - westland,

Westland natural plant food - westland,

£17.75
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Westland safe lawn natural - lawn,

Westland safe lawn natural - lawn,

£13.99
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Liquid seaweed fertiliser - seaweed, 1l

Liquid seaweed fertiliser - seaweed, 1l

£13.99
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Gardennova anthurium liquid - gardennova,

Gardennova anthurium liquid - gardennova,

£8.88
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Gardennova money tree - gardennova,

Gardennova money tree - gardennova,

£8.88
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Gardennova monstera liquid - monstera,

Gardennova monstera liquid - monstera,

£9.99
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Jbl pro aquatest - k, potassium

Jbl pro aquatest - k, potassium

£38.48
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Canna coco b plant - coco, a

Canna coco b plant - coco, a

£15.85
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Growmore 07 special - growmore,

Growmore 07 special - growmore,

£0.99
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Westland houseplant feed - westland,

Westland houseplant feed - westland,

£5.05
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Ivisons lawn grass turf pre - ivisons,

Ivisons lawn grass turf pre - ivisons,

£39.99
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Growmore fertiliser 07 - growmore, 07-07-07

Growmore fertiliser 07 - growmore, 07-07-07

£2.50
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Gardennova money tree - gardennova,

Gardennova money tree - gardennova,

£9.99
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Organic extra fertiliser - extra, 44

Organic extra fertiliser - extra, 44

£34.99
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Gardennova snake plant liquid - snake,

Gardennova snake plant liquid - snake,

£8.88
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Cow manure pellets 10l - manure, 5/10l

Cow manure pellets 10l - manure, 5/10l

£24.99
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Vitax orchid plant food - vitax, feed

Vitax orchid plant food - vitax, feed

£7.50
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Doff liquid growmore plant - doff,

Doff liquid growmore plant - doff,

£6.98
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Westland fish blood and bone - westland,

Westland fish blood and bone - westland,

£23.99
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Osmocote slow release - release, plant

Osmocote slow release - release, plant

£16.99
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Growth technology chilli focus - technology,

Growth technology chilli focus - technology,

£6.99
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Liquid seaweed fertiliser 5l - liquid, 2.5l

Liquid seaweed fertiliser 5l - liquid, 2.5l

£16.99
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Orchid water rtu - water,

Orchid water rtu - water,

£6.38
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Incredigrow chempak no3 all - chempak,

Incredigrow chempak no3 all - chempak,

£12.49
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Organic plant food all purpose - plant,

Organic plant food all purpose - plant,

£7.99
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1ltr organic seaweed - organic,

1ltr organic seaweed - organic,

£14.95
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Shogun plant nutrients - shogun,

Shogun plant nutrients - shogun,

£83.45
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Jarder month lawn feed - month,

Jarder month lawn feed - month,

£26.95
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Doff multipurpose feed 600ml - multipurpose,

Doff multipurpose feed 600ml - multipurpose,

£6.20
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Miracle gro plant - plant, feeder

Miracle gro plant - plant, feeder

£17.99
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Westland ericaceous specialist - westland,

Westland ericaceous specialist - westland,

£9.99
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Levington sulphate ammonia - sulphate, of

Levington sulphate ammonia - sulphate, of

£10.99
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Mineral fertilizer for - fertilizer,

Mineral fertilizer for - fertilizer,

£15.99
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Doff liquid multi - doff, purpose

Doff liquid multi - doff, purpose

£7.98
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Miracle gro premium fast - premium,

Miracle gro premium fast - premium,

£8.90
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Houseplant feed concentrate - houseplant,

Houseplant feed concentrate - houseplant,

£5.94
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Canna coco nutrient 10l - a+b,

Canna coco nutrient 10l - a+b,

£59.20
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30l premium liquid seaweed - 30l,

30l premium liquid seaweed - 30l,

£68.99
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Autumn fertilizer for lawns - autumn,

Autumn fertilizer for lawns - autumn,

£13.60
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Organic seaweed liquid - seaweed,

Organic seaweed liquid - seaweed,

£39.95
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Fertilizer for hydrangeas - fertilizer,

Fertilizer for hydrangeas - fertilizer,

£10.26
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Gardennova monstera liquid - gardennova,

Gardennova monstera liquid - gardennova,

£8.88
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Liquid seaweed fertiliser - seaweed, –

Liquid seaweed fertiliser - seaweed, –

£59.99
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Chilli pepper focus premium - &,

Chilli pepper focus premium - &,

£12.97
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Westland fish blood bone - blood, &

Westland fish blood bone - blood, &

£19.07
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Plant magic old timer litre - old, 1

Plant magic old timer litre - old, 1

£12.99
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Westland ericaceous plant - ericaceous, food

Westland ericaceous plant - ericaceous, food

£9.89
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Gardennova spider plant liquid - spider,

Gardennova spider plant liquid - spider,

£8.88
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Jarder lawn feed for new - lawn,

Jarder lawn feed for new - lawn,

£32.95
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Gardennova lemon tree - lemon,

Gardennova lemon tree - lemon,

£8.88
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Miracle gro plant feeder - gro,

Miracle gro plant feeder - gro,

£18.50
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Doff growmore plant feed - plant, 1l

Doff growmore plant feed - plant, 1l

£7.99
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Vitax sulphate potash - of,

Vitax sulphate potash - of,

£12.99
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Plant magic root - magic, stimulant

Plant magic root - magic, stimulant

£19.99
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Ivisons pre seed - pre,

Ivisons pre seed - pre,

£36.73
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Organic fertiliser fresh - fresh, alive

Organic fertiliser fresh - fresh, alive

£5.61
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Multi mite ltr - 1,

Multi mite ltr - 1,

£14.95
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Miracle gro continuous - miracle-gro, release

Miracle gro continuous - miracle-gro, release

£9.77
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Jarder lawn feed fertiliser - lawn,

Jarder lawn feed fertiliser - lawn,

£27.95
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Growmore organic all - organic,

Growmore organic all - organic,

£7.99
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Fertilizer for potted - fertilizer, plants

Fertilizer for potted - fertilizer, plants

£8.90
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Miracle gro autumn - autumn, care

Miracle gro autumn - autumn, care

£26.99
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Fish blood bone all purpose - bone,

Fish blood bone all purpose - bone,

£7.99
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Growth technology essential - growth,

Growth technology essential - growth,

£11.99
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5ltr organic seaweed liquid - seaweed,

5ltr organic seaweed liquid - seaweed,

£28.95
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Biobizz topmax organic - biobizz,

Biobizz topmax organic - biobizz,

£205.98
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Jarder moss killer for lawns - killer,

Jarder moss killer for lawns - killer,

£29.95
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Biobizz alg mic organic - biobizz,

Biobizz alg mic organic - biobizz,

£14.85
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Gardennova snake plant liquid - plant,

Gardennova snake plant liquid - plant,

£9.99
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Gardennova lemon tree liquid - tree,

Gardennova lemon tree liquid - tree,

£9.99
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📊96 listings · from £0.99 · avg £18.58
⚠️ These listings were last updated more than 15 days ago. Search for fresh listings

Browse 96 potassium nitrate listings currently in our index. Prices range from £0.99 to £205.98, with an average of £18.58. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about potassium nitrate →

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Everything you need to know about potassium nitrate

Whether you are looking for a brand-new or second-hand potassium nitrate, eBay offers one of the largest selections available online. With 96 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £0.99, while premium listings can reach £205.98 — giving you a wide budget spread to work with. The average price of £18.58 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.

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