For Sale UK

Potassium nitrate

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Potassium nitrate for sale on Ireland's largest auction and classifieds sites

Home / Plant Care, Soil & Accessories / Potassium nitrate refurbished & used for sale | For Sale UK
Elixir gardens high potassium - elixir,

Elixir gardens high potassium - elixir,

£67.49 · Buy It Now

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Organic 10ltr liquid - organic,

Organic 10ltr liquid - organic,

£29.95 · Buy It Now

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Organic 20ltr liquid seaweed - organic,

Organic 20ltr liquid seaweed - organic,

£49.95 · Buy It Now

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Organic 5ltr liquid seaweed - organic,

Organic 5ltr liquid seaweed - organic,

£23.95 · Buy It Now

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Growmore special blend - 7-7-7,

Growmore special blend - 7-7-7,

£9.49 · Buy It Now

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Blood fish bone multi - blood,

Blood fish bone multi - blood,

£13.99 · Buy It Now

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Nutrigrow pre seeder lawn - nutrigrow, pre-seeder

Nutrigrow pre seeder lawn - nutrigrow, pre-seeder

£34.99 · Buy It Now

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Miracle gro continuous release - continuous,

Miracle gro continuous release - continuous,

£8.09 · Buy It Now

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Liquid seaweed fertiliser 5l - fertiliser, 2.5l

Liquid seaweed fertiliser 5l - fertiliser, 2.5l

£16.99 · Buy It Now

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10ltr liquid seaweed - 10ltr,

10ltr liquid seaweed - 10ltr,

£29.95 · Buy It Now

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Liquid seaweed fertiliser - liquid, 5l

Liquid seaweed fertiliser - liquid, 5l

£23.99 · Buy It Now

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Liquid seaweed fertiliser 20l - liquid,

Liquid seaweed fertiliser 20l - liquid,

£53.99 · Buy It Now

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Ivisons lawn grass turf pre - lawn,

Ivisons lawn grass turf pre - lawn,

£34.99 · Buy It Now

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Organic seaweed liquid - organic,

Organic seaweed liquid - organic,

£11.95 · Buy It Now

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5ltr organic seaweed liquid - 5ltr,

5ltr organic seaweed liquid - 5ltr,

£23.95 · Buy It Now

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Levington natural sulphate - natural,

Levington natural sulphate - natural,

£11.95 · Buy It Now

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Growmore organic all purpose - organic,

Growmore organic all purpose - organic,

£7.99 · Buy It Now

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Bat guano fertiliser - guano,

Bat guano fertiliser - guano,

£2.49 · Buy It Now

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Carnivorous plant food spray - carnivorous,

Carnivorous plant food spray - carnivorous,

£9.99 · Buy It Now

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Granulated fertilizer for - fertilizer,

Granulated fertilizer for - fertilizer,

£13.90 · Buy It Now

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New miracle gro hose end - miracle‑gro, hose‑end

New miracle gro hose end - miracle‑gro, hose‑end

£18.98 · Buy It Now

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Miracle gro plant - plant, feeder

Miracle gro plant - plant, feeder

£18.04 · Buy It Now

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Dried blood meal - dried,

Dried blood meal - dried,

£2.50 · Buy It Now

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Osmocote pro m - osmocote, 12-14

Osmocote pro m - osmocote, 12-14

£9.29 · Buy It Now

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Ericaceous high performance - high,

Ericaceous high performance - high,

£8.49 · Buy It Now

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Osmocote slow release - osmocote,

Osmocote slow release - osmocote,

£5.89 · Buy It Now

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Miracle gro premium fast - premium,

Miracle gro premium fast - premium,

£8.90 · Buy It Now

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Miracle gro feeder nematode - miracle-gro,

Miracle gro feeder nematode - miracle-gro,

£20.99 · Buy It Now

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20ltr organic seaweed liquid - 20ltr,

20ltr organic seaweed liquid - 20ltr,

£49.95 · Buy It Now

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Organic ltr liquid seaweed - 2.5,

Organic ltr liquid seaweed - 2.5,

£17.95 · Buy It Now

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Organic fertilizer for

Organic fertilizer for

£13.50 · Buy It Now

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Emerald harvest king kola - emerald,

Emerald harvest king kola - emerald,

£37.10 · Buy It Now

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Fertilizer for conifers 1 - conifers, 1.2

Fertilizer for conifers 1 - conifers, 1.2

£13.60 · Buy It Now

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Westland sulphate potash - sulphate, of

Westland sulphate potash - sulphate, of

£10.95 · Buy It Now

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Miracle gro plant - plant,

Miracle gro plant - plant,

£18.50 · Buy It Now

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Nutrigrow growmore tree plant - tree,,

Nutrigrow growmore tree plant - tree,,

£29.99 · Buy It Now

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Doff growmore plant feed multi - doff,

Doff growmore plant feed multi - doff,

£5.22 · Buy It Now

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Liquid seaweed fertiliser - seaweed, 10l

Liquid seaweed fertiliser - seaweed, 10l

£38.99 · Buy It Now

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Organic extra fertiliser - organic,

Organic extra fertiliser - organic,

£34.99 · Buy It Now

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Multi mite ltr organic - mite,

Multi mite ltr organic - mite,

£11.95 · Buy It Now

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Miracle gro feeder garden - miracle-gro,

Miracle gro feeder garden - miracle-gro,

£18.99 · Buy It Now

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Miracle gro rose and shrub - miracle,

Miracle gro rose and shrub - miracle,

£7.49 · Buy It Now

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Westland fish blood and - westland,

Westland fish blood and - westland,

£23.99 · Buy It Now

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All purpose plant food 900g - all,

All purpose plant food 900g - all,

£7.57 · Buy It Now

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Organic plant food - plant, all

Organic plant food - plant, all

£7.99 · Buy It Now

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30l premium liquid seaweed - 30l,

30l premium liquid seaweed - 30l,

£68.99 · Buy It Now

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Vitax blood fish bone - vitax,

Vitax blood fish bone - vitax,

£9.99 · Buy It Now

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Growth technology chilli focus - technology,

Growth technology chilli focus - technology,

£6.99 · Buy It Now

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Miracle gro continuous release - miracle-gro,

Miracle gro continuous release - miracle-gro,

£7.78 · Buy It Now

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Miracle gro feeder - miracle-gro,

Miracle gro feeder - miracle-gro,

£18.99 · Buy It Now

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Baby bio fertiliser for - baby,

Baby bio fertiliser for - baby,

£3.35 · Buy It Now

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Ivisons 696 pre seed - ivisons,

Ivisons 696 pre seed - ivisons,

£34.99 · Buy It Now

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Miracle gro evergreen - gro,

Miracle gro evergreen - gro,

£9.89 · Buy It Now

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Miracle gro continuous release - miracle-gro,

Miracle gro continuous release - miracle-gro,

£7.49 · Buy It Now

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Osmocote topdress slow release - topdress,

Osmocote topdress slow release - topdress,

£11.99 · Buy It Now

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Biobizz bio bloom organic - bio, 1l

Biobizz bio bloom organic - bio, 1l

£12.15 · Buy It Now

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Miracle gro continuous - continuous, release

Miracle gro continuous - continuous, release

£8.47 · Buy It Now

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20kg paddock fertiliser - 20kg,

20kg paddock fertiliser - 20kg,

£39.99 · Buy It Now

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Chempak tomato plant feed - chempak,

Chempak tomato plant feed - chempak,

£10.99 · Buy It Now

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Shogun plant nutrients sumo - plant,

Shogun plant nutrients sumo - plant,

£195.45 · Buy It Now

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Westland fish blood - westland, all

Westland fish blood - westland, all

£17.99 · Buy It Now

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Doff growmore plant feed - doff,

Doff growmore plant feed - doff,

£6.98 · Buy It Now

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Crystalline fertilizer

Crystalline fertilizer

£8.90 · Buy It Now

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Miracle gro continuous release - miracle-gro,

Miracle gro continuous release - miracle-gro,

£7.56 · Buy It Now

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Canna coco nutrient - a+b, 10l

Canna coco nutrient - a+b, 10l

£59.20 · Buy It Now

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Jarder lawn feed - lawn, new

Jarder lawn feed - lawn, new

£31.95 · Buy It Now

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Growth technology plant - growth, food

Growth technology plant - growth, food

£6.45 · Buy It Now

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All purpose plant - plant, 900g

All purpose plant - plant, 900g

£8.11 · Buy It Now

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Jarder month lawn - lawn, feed

Jarder month lawn - lawn, feed

£18.95 · Buy It Now

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Baby bio 5878844 houseplant - bio,

Baby bio 5878844 houseplant - bio,

£1.40 · Buy It Now

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Westland houseplant feed - westland,

Westland houseplant feed - westland,

£5.94 · Buy It Now

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Organic fertiliser solid - fertiliser,

Organic fertiliser solid - fertiliser,

£5.45 · Buy It Now

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Nourishing ericaceous liquid - nourishing,

Nourishing ericaceous liquid - nourishing,

£9.99 · Buy It Now

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Baby bio houseplant food 175ml - baby,

Baby bio houseplant food 175ml - baby,

£3.99 · Buy It Now

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Vitax cacti succulent house - vitax, &

Vitax cacti succulent house - vitax, &

£7.50 · Buy It Now

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Citrus focus 100ml liquid - citrus,

Citrus focus 100ml liquid - citrus,

£8.99 · Buy It Now

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Westland ericaceous plant food - ericaceous,

Westland ericaceous plant food - ericaceous,

£9.49 · Buy It Now

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Westland 20100517 orchid - westland,

Westland 20100517 orchid - westland,

£7.50 · Buy It Now

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Vitax bonsai feed - feed, soluble

Vitax bonsai feed - feed, soluble

£9.99 · Buy It Now

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Baby bio houseplant - bio, 175ml

Baby bio houseplant - bio, 175ml

£2.67 · Buy It Now

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Levington sulphate potash - sulphate, of

Levington sulphate potash - sulphate, of

£9.99 · Buy It Now

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Liquid seaweed fertiliser - fertiliser, 6l

Liquid seaweed fertiliser - fertiliser, 6l

£29.99 · Buy It Now

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Growth technology herb - herb, focus

Growth technology herb - herb, focus

£6.85 · Buy It Now

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Continuous release all purpose - continuous,

Continuous release all purpose - continuous,

£7.58 · Buy It Now

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Organic fertilizer for

Organic fertilizer for

£13.50 · Buy It Now

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Growth technology essential - growth,

Growth technology essential - growth,

£7.15 · Buy It Now

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Biobizz bio bloom organic - biobizz, bio-bloom

Biobizz bio bloom organic - biobizz, bio-bloom

£12.99 · Buy It Now

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Westland houseplant feed - westland,

Westland houseplant feed - westland,

£5.81 · Buy It Now

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Canna coco b - canna, plant

Canna coco b - canna, plant

£15.85 · Buy It Now

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Miracle gro continuous - miracle-gro, release

Miracle gro continuous - miracle-gro, release

£7.56 · Buy It Now

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Westland ericaceous plant food - ericaceous,

Westland ericaceous plant food - ericaceous,

£9.20 · Buy It Now

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Fertilizer for hydrangeas - fertilizer,

Fertilizer for hydrangeas - fertilizer,

£11.99 · Buy It Now

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Doff liquid growmore feed - doff,

Doff liquid growmore feed - doff,

£4.99 · Buy It Now

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Miracle gro premium - 2,

Miracle gro premium - 2,

£16.00 · Buy It Now

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Buddhas tree 18 1l - buddhas,

Buddhas tree 18 1l - buddhas,

£46.46 · Buy It Now

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Shogun samurai coco - samurai, a+b

Shogun samurai coco - samurai, a+b

£15.90 · Buy It Now

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📊96 listings · from £1.4 · avg £19.06

Browse 96 potassium nitrate listings currently in our index. Prices range from £1.4 to £195.45, with an average of £19.06. 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 →

Try this: large garden storage box | tall planter plastic | plant cells | wooden garden planters trellis | wooden garden trellis arch | plant obelisk | plastic garden tray | small oak barrel | square plastic plant pots | vintage plant pot holder

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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 £1.4, while premium listings can reach £195.45 — giving you a wide budget spread to work with. The average price of £19.06 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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