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โก Elevate your craft and garden with science-backed purity!
This 1kg tub of 17% iron-free aluminium sulphate is a versatile, crystalline powder trusted for water purification, textile dyeing, and organic horticulture. It effectively lowers soil pH to alter hydrangea colors and acts as a powerful mordant and coagulating agent. Manufactured in the UK by Trustleaf, it boasts high customer satisfaction and ranks among the top garden and pond treatment products.

| Asin | B07P3W8JJ7 |
| Best Sellers Rank | 2,361 in Garden (See Top 100 in Garden) 12 in Water Garden & Pond Treatment |
| Brand | Trustleaf |
| Country Of Origin | United Kingdom |
| Customer Reviews | 4.5 4.5 out of 5 stars (626) 4.5 out of 5 stars |
| Item Form | Powder |
| Item Weight | 1000 Grams |
| Manufacturer | Trustleaf |
User
Top aluminium sulphate product
Excellent product and good value. Prompt delivery and well packaged.
User
If I didnโt know it was science, I might think it was magic!
Iโm doing as suggested ,a litre of rain water to half a teaspoon of aluminium sulphate, once every three weeks. My pinkish Hydrangea is now a Bluey pink. I appreciate that this isnโt a quick process, but Iโm pleased with the progress made so far.
User
Just the job
Just the jobMany thanks
User
If you only need a small amount of iron free alum, this is useful
If you are looking at aluminium sulphate and wondering whether this smaller bag is enough for a specific job, yes. The 250g size is useful when you do not want to buy far more than you need.It is easy to store, clearly labelled, and practical for jobs where iron free alum is the right material. With products like this, I mostly want the correct chemical, a sensible quantity and packaging that does not make storage awkward.My tip would be to check the use case carefully, follow the relevant guidance for your job, and store it safely away from children and pets. Straightforward, useful and five stars.
User
Great item
Great product good quality
User
It could be me!
I bought this to turn my potted pink Hydrangea blue, despite adding vinegar to help break down the product, the hydrangea is still pink. So a waste of money for me but maybe i did something wrong?
User
Happy gardener
Very easy to use keeps my hydrangea blue
User
Ideal first aid supply
Bought this as my Great Dane split a nail and I couldn't stop it bleeeding, and every time it healed he knocked it and started over again..... I put half a teaspoon on some cotton wool and bandaged his nail and toe and when I checked 24 hours later it had completely dried and was able to seal the broken nail wil super glue
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