--- product_id: 231293752 title: "Bonide 705 Aluminum Sulfate, 4-Pound" brand: "bonide" price: "NZ$50" currency: NZD in_stock: false reviews_count: 5 url: https://www.desertcart.nz/products/231293752-bonide-705-aluminum-sulfate-4-pound store_origin: NZ region: New Zealand --- # Bonide 705 Aluminum Sulfate, 4-Pound **Brand:** bonide **Price:** NZ$50 **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** Bonide 705 Aluminum Sulfate, 4-Pound by bonide - **How much does it cost?** NZ$50 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/231293752-bonide-705-aluminum-sulfate-4-pound) ## Best For - bonide enthusiasts ## Why This Product - Trusted bonide brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B000BZ4RJY | | Brand Name | Bonide | | Coverage | Medium | | Customer Reviews | 4.6 4.6 out of 5 stars (477) 4.6 out of 5 stars | | Item Form | Powder | | Item Weight | 4 Pounds | | Liquid Volume | 4 Litres | | Model Number | 705 | | Part Number | 705 | | Specific Uses For Product | organic | | Unit Count | 1892.7 Milliliters | | Upc | 037321007050 716080026570 | ## Product Details - **Brand:** Bonide - **Item Weight:** 1.81 kg - **Item Form:** Powder - **Liquid Volume:** 4 Litres - **Specific Uses For Product:** organic ## Images ![Bonide 705 Aluminum Sulfate, 4-Pound - Image 1](https://m.media-amazon.com/images/I/61aZz9KiloL.jpg) ![Bonide 705 Aluminum Sulfate, 4-Pound - Image 2](https://m.media-amazon.com/images/I/71sH76-OADL.jpg) ![Bonide 705 Aluminum Sulfate, 4-Pound - Image 3](https://m.media-amazon.com/images/I/71+fQqSq3LL.jpg) ![Bonide 705 Aluminum Sulfate, 4-Pound - Image 4](https://m.media-amazon.com/images/I/7165uGpGYFL.jpg) ![Bonide 705 Aluminum Sulfate, 4-Pound - Image 5](https://m.media-amazon.com/images/I/71+qCTPhYzL.jpg) ## Questions & Answers **Q: Where is this product manufactured?** A: It appears to be manufactured in Oriskany, NY. I don’t know the source of the ingredients. **Q: Is this pure enough to grow crystals for science project?** A: I am no scientist, but would guess the answer is yes. Label says 100% aluminum sulfate. Aluminum 17% and sulfer 15%. (Don't you also need potassium to grow crystals?) **Q: Will this lower the ph for avocado / citrus saplings ?** A: Yes. Aluminum sulphate lowers the ph in Soil **Q: Isn’t aluminum sulfate white? Why is it yellow in the picture?** A: I think that it just looks yellow-ish in the photo. I bought this stuff and the crystals are white. It's just the photo. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Worked better than I expected in organic indoor gardening *by on Reviewed in the United States 15 April 2023* I grow medical Cannabis indoors in organic soil with organic nutrients and sometimes soil pH goes off balance and needs to be raised so i use Dolomite Lime powder and when it needs to be lowered I decided to give Aluminum Sulfate a try after doing some research I found out that Aluminum Sulfate can be used in organic setups and it's one of the fastest acting products. So I bought this 4 Lbs bag and didn't know how much to add to i started small at 2g per gallon of soil and after a few tries I was able to determine that the best ratio is 10g per 1 gallon of soil and i was able to lower the soil pH from 7.4 to 6.5 and my plants responded in a positive way and the deficiency went away after 5 days.95% of deficiencies occur because of soil pH imbalance that's why it's very important to have the right products that work every time that you can rely on and this Aluminum Sulfate is 100% one of the products you can definitely rely on.Happy growing 🪴🗣️💨 ### ⭐⭐⭐⭐⭐ It's also loved by my roses and azaleas *by on Reviewed in the United States 2 July 2018* It worked for me. My baby hydrangea started turning pink, and I was looking for soil acidifier to help. After researching online soil acidifiers and how to approach soil ph tempering, I tried this product. (My starting soil ph was 7). The hydrangea is quite young, but I took a chance. I applied a very small (not even a 1/4 of recommended) amount, then a couple of weeks later a few more sprinkles, then a month later a tiny tiny bit more. The color slowly turned to lavender then to light blue. I could probably use it again for a deeper blue.I can tell this product works fast, but I used it in small amounts adding more as I went so it didn't burn my plants. It's also loved by my roses and azaleas. I barely dust around them every month or so. They love it! ### ⭐⭐⭐⭐⭐ Worked great! *by on Reviewed in the United States 2 January 2025* I used this to turn my hydrangeas blue. It did the trick! ## Frequently Bought Together - Bonide Garden Rich Aluminum Sulfate, 4 lbs. Ready-to-Use, Lowers pH in Home Garden, Compatible with all Soil Types - Garden Tutor Soil pH Test Kit – 100 Strips with AI-Powered Web Reader – Accurate Testing for Lawn, Garden & Compost – pH 3.5–9 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.nz/products/231293752-bonide-705-aluminum-sulfate-4-pound](https://www.desertcart.nz/products/231293752-bonide-705-aluminum-sulfate-4-pound) --- *Product available on Desertcart New Zealand* *Store origin: NZ* *Last updated: 2026-09-18*