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Potassium nitrate

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Potassium nitrate for sale on largest auction and classifieds sites

Home / Plants & Gardening / Potassium nitrate refurbished & used for sale | For Sale
Elixir gardens high potassium - elixir,

Elixir gardens high potassium - elixir,

€89.99
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Organic 10ltr liquid seaweed - organic,

Organic 10ltr liquid seaweed - organic,

€39.95
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Organic 20ltr liquid seaweed - organic,

Organic 20ltr liquid seaweed - organic,

€69.95
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Organic seaweed liquid - organic,

Organic seaweed liquid - organic,

€39.95
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Growmore special blend - 7-7-7,

Growmore special blend - 7-7-7,

€5.39
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All purpose plant food - all,

All purpose plant food - all,

€7.99
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Liquid seaweed fertiliser - fertiliser, 5l

Liquid seaweed fertiliser - fertiliser, 5l

€23.99
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Liquid lawn feed 500ml - x,

Liquid lawn feed 500ml - x,

€7.99
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Westland sulphate potash - of,

Westland sulphate potash - of,

€10.95
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Miracle gro plant - gro,

Miracle gro plant - gro,

€18.00
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Miracle gro all purpose - miracle,

Miracle gro all purpose - miracle,

€7.48
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Carnivorous plant food - carnivorous,

Carnivorous plant food - carnivorous,

€9.99
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Liquid seaweed fertiliser - liquid,

Liquid seaweed fertiliser - liquid,

€53.99
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Chempak tomato plant feed - chempak,

Chempak tomato plant feed - chempak,

€13.99
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Shogun samurai coco plant - coco, a+b

Shogun samurai coco plant - coco, a+b

€15.90
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Shogun dragon force - force, nutrient

Shogun dragon force - force, nutrient

€79.99
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Biobizz bio bloom organic - biobizz,

Biobizz bio bloom organic - biobizz,

€12.15
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Baby bio houseplant food 175ml - houseplant,

Baby bio houseplant food 175ml - houseplant,

€2.67
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Liquid seaweed fertiliser 5l - liquid,

Liquid seaweed fertiliser 5l - liquid,

€16.99
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Growth technology chilli and - technology,

Growth technology chilli and - technology,

€10.08
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Citrus food 175ml - citrus, plant

Citrus food 175ml - citrus, plant

€4.53
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Vitax blood fish - bone, plant

Vitax blood fish - bone, plant

€9.98
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Miracle gro feeder unit - miracle-gro,

Miracle gro feeder unit - miracle-gro,

€18.95
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Westland safe lawn - safe, natural

Westland safe lawn - safe, natural

€13.99
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Welsh fresh sphagnum moss live - welsh,

Welsh fresh sphagnum moss live - welsh,

€11.99
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Osmocote pro m - pro,

Osmocote pro m - pro,

€18.99
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Doff growmore plant feed - feed, multi

Doff growmore plant feed - feed, multi

€5.50
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Bat guano fertiliser - guano, organic

Bat guano fertiliser - guano, organic

€2.49
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Organic 5ltr liquid seaweed - organic,

Organic 5ltr liquid seaweed - organic,

€28.95
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5ltr organic seaweed liquid - 5ltr,

5ltr organic seaweed liquid - 5ltr,

€28.95
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10ltr liquid seaweed - 10ltr,

10ltr liquid seaweed - 10ltr,

€39.95
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Emerald harvest king - emerald,

Emerald harvest king - emerald,

€37.10
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Miracle gro hose feeder - miracle-gro,

Miracle gro hose feeder - miracle-gro,

€18.99
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Miracle gro feeder nematode - feeder,

Miracle gro feeder nematode - feeder,

€21.10
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Baby bio organic - organic, houseplant

Baby bio organic - organic, houseplant

€3.99
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Nutrigrow growmore tree plant - growmore, tree,

Nutrigrow growmore tree plant - growmore, tree,

€29.99
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Osmocote slow release - osmocote,

Osmocote slow release - osmocote,

€22.29
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Levington natural sulphate - sulphate, of

Levington natural sulphate - sulphate, of

€11.95
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Gardennova monstera liquid - gardennova,

Gardennova monstera liquid - gardennova,

€9.99
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20ltr organic seaweed liquid - organic,

20ltr organic seaweed liquid - organic,

€69.95
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Chempak tomato plant - chempak,

Chempak tomato plant - chempak,

€10.99
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Doff liquid growmore feed - doff,

Doff liquid growmore feed - doff,

€4.99
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Levington sulphate potash - sulphate, of

Levington sulphate potash - sulphate, of

€9.99
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Baby bio houseplant food 175ml - baby,

Baby bio houseplant food 175ml - baby,

€3.99
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Effortless 500ml tomato - 500ml, &

Effortless 500ml tomato - 500ml, &

€7.99
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Ivisons 696 pre seed - ivisons,

Ivisons 696 pre seed - ivisons,

€34.99
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Westland fish blood bone - fish, all

Westland fish blood bone - fish, all

€17.99
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Dried blood meal - dried,

Dried blood meal - dried,

€2.50
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Growth technology plant - growth,

Growth technology plant - growth,

€6.45
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Miracle gro continuous release - miracle-gro,

Miracle gro continuous release - miracle-gro,

€7.58
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Westland houseplant feed - westland,

Westland houseplant feed - westland,

€5.81
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Vitax cacti succulent house - vitax,

Vitax cacti succulent house - vitax,

€7.50
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All purpose plant food 900g - plant,

All purpose plant food 900g - plant,

€7.77
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Westland houseplant feed - westland,

Westland houseplant feed - westland,

€5.77
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Osmocote slow release plant - osmocote,

Osmocote slow release plant - osmocote,

€16.99
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Canna coco nutrient - coco,

Canna coco nutrient - coco,

€59.20
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Shogun plant nutrients sumo - shogun,

Shogun plant nutrients sumo - shogun,

€195.45
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Citrus food 175ml - food, plant

Citrus food 175ml - food, plant

€4.43
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Liquid seaweed fertiliser - liquid,

Liquid seaweed fertiliser - liquid,

€29.99
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Canna coco b plant - a, +

Canna coco b plant - a, +

€15.85
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Blood fish bone - fish, multi

Blood fish bone - fish, multi

€13.99
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Growth technology chilli focus - growth,

Growth technology chilli focus - growth,

€6.99
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Miracle gro continuous release - continuous,

Miracle gro continuous release - continuous,

€7.80
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Npk professional lawn - 15-25-6,

Npk professional lawn - 15-25-6,

€13.90
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Houseplant food concentrate - food,

Houseplant food concentrate - food,

€7.99
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Biobizz bio bloom organic - biobizz,

Biobizz bio bloom organic - biobizz,

€12.99
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Growmore fertiliser 07 - growmore,

Growmore fertiliser 07 - growmore,

€2.50
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Organic fertilizer for

Organic fertilizer for

€13.50
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Growmore 07 special - growmore, 07-07-07

Growmore 07 special - growmore, 07-07-07

€0.99
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Granulated fertilizer for - fertilizer,

Granulated fertilizer for - fertilizer,

€13.90
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Citrus food 175ml - citrus, plant

Citrus food 175ml - citrus, plant

€4.76
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Cow manure pellets 10l - manure, 5/10l

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

€24.99
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Mineral fertilizer for - fertilizer,

Mineral fertilizer for - fertilizer,

€15.99
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Ivisons lawn grass turf pre - grass,

Ivisons lawn grass turf pre - grass,

€41.98
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Baby bio fertiliser for - baby,

Baby bio fertiliser for - baby,

€3.35
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Miracle gro continuous - continuous, release

Miracle gro continuous - continuous, release

€6.97
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Ionic boost litre - 1, plant

Ionic boost litre - 1, plant

€12.45
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Doff liquid growmore - doff,

Doff liquid growmore - doff,

€7.03
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30l premium liquid seaweed - premium,

30l premium liquid seaweed - premium,

€68.99
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Fertilizer for conifers - -, 1.2

Fertilizer for conifers - -, 1.2

€13.60
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Miracle gro continuous - continuous, release

Miracle gro continuous - continuous, release

€7.63
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Osmocote topdress slow release - osmocote,

Osmocote topdress slow release - osmocote,

€5.29
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Baby bio original - original, plant

Baby bio original - original, plant

€6.59
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Miracle gro premium fast - miracle-gro,

Miracle gro premium fast - miracle-gro,

€8.90
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Organic fertilizer for

Organic fertilizer for

€13.50
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Miracle gro all purpose - miracle, plant

Miracle gro all purpose - miracle, plant

€7.09
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Vitax orchid feed 200g - feed,

Vitax orchid feed 200g - feed,

€10.99
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Gardennova peace lily liquid - gardennova,

Gardennova peace lily liquid - gardennova,

€8.88
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Chilli pepper focus - chilli,

Chilli pepper focus - chilli,

€11.95
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Fertiliser plant food all - fertiliser,

Fertiliser plant food all - fertiliser,

€7.99
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Shogun warrior 18 - shogun, pk

Shogun warrior 18 - shogun, pk

€63.99
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Crystalline fertilizer

Crystalline fertilizer

€12.75
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Bio flores canna - bio,

Bio flores canna - bio,

€15.35
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Westland ericaceous high - westland,

Westland ericaceous high - westland,

€9.30
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Gardennova citrus tree liquid - tree,

Gardennova citrus tree liquid - tree,

€9.99
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Bluelab truncheon ppm - truncheon, ec/cf/ppm

Bluelab truncheon ppm - truncheon, ec/cf/ppm

€69.99
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📊96 listings · from €0.99 · avg €20.5

Browse 96 potassium nitrate listings currently in our index. Prices range from €0.99 to €195.45, with an average of €20.5. 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 €195.45 — giving you a wide budget spread to work with. The average price of €20.5 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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