

🌿 Feed your plants like a pro — watch your garden glow with every drop!
Gardenwise 20-20-20 Water-Soluble Fertilizer is a premium, fast-acting powder designed for both indoor and outdoor plants. Its balanced NPK formula ensures optimal growth, vibrant flowers, and robust vegetable yields. Easy to dissolve and apply, it’s perfect for houseplants, lawns, orchids, and vegetable gardens, delivering professional-grade nutrition safely and efficiently.





| ASIN | B0CH9BBMNG |
| Best Sellers Rank | #137 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #6 in Garden Fertilizers |
| Brand | GARDENWISE |
| Date First Available | August 13, 2023 |
| Item Form | Granules, Powder |
| Item Weight | 1 pounds |
| Item model number | WS-20-20-20 |
| Liquid Volume | 0.5 Quarts |
| Manufacturer | Summit Sales Company LLC |
| Number of Items | 1 |
| Package Dimensions | 7.2 x 5.31 x 1.89 inches |
| Specific Uses For Product | water soluble fertilizer, all purpose fertilizer, for indoor and outdoor plants, fertilizer for vegetable garden, tree fertilizer |
| UPC | 804467813209 |
| Unit Count | 16.0 Ounce |
C**E
Bloom‑Boosting Results You Can See (and Smell!)
I purchased this fertilizer for my Meyer lemon tree, and the results were impressive. Within a week of applying it, the tree was in full bloom, and my greenhouse was filled with the incredible scent of lemon blossoms. The balanced NPK formula with added micronutrients clearly made a difference, and it was very easy to apply. I’ll definitely be using this on my other citrus trees in the spring.
D**Y
great product from a good company
I like this fertilizer, it really helped my Lemon and Banana plants. I personally did not notice any smell as others have stated. The blue color is interesting, I cannot verify the content, but my plants perked up not to long after application.
S**E
A little goes a long way!
So far, so good. Works well for all of my indoor plants. High concentration so you only use a small amount. Packaging it came in was well done.
M**.
Ah, I know what this is, Milwaukee's finest
I received my order and all went well with my tomato transplants. I do however want to note one thing. It took me a while to remember where I've seen this before... The answer? Milwaukee, of course. You see, Milwaukee is famous for 4 things 1) beer 2) beer 3) power tools on the hardware store shelves 4) another common hardware store shelf item... Milorganite. This, is Milorganite - heat treated microbes processed into granules, grown from Milwaukee's finest sewage waste. Now before you cringe, just hear me out. It's good stuff. Really. The values represented on the label here are accurate, and the same values can be found on the state sponsored Milorganite website. These granules are held to a very high composition standard and have been federally regulated for a long time. Like, the 70s. My grandparents used this stuff religiously. It does work well as slow release fertilizer. So that's good, and I'm glad to have some. But here's the problem... the last time I bought a 50 lb bag of Milorganite, it was around the same price as this listing... By that, I mean the entire 50 lb bag cost as much as this little bag sold here. So while the Amazon delivery is convenient, and the size is nice because it fits in my cupboard, this is unbelievably overpriced. Many brands sell Milorganite. Milorganite sells it direct too, but in general you can consider Milorganite an ingredient in many granual fertlizer products, mostly lawn fertlizers. So I am not telling you to go by the name brand, I'm just telling you that the ingredient being sold here is Milorganite, at about 15 times the price available everywhere else. And I do mean everywhere else - the hardware store, the garden center, wally world, etc... I'd also like to note, it seems intentional the seller does not list the ingredient on the label, or any ingredients for that matter, but instead lists only the nutrient content, which, as stated before, can be matched line for line on the milorganite website. Because it's Milorganite. Tsk tsk Gardenwise. Good product, bad price. Which is probably why you don't sell it on your international 'mygardenwise' website anymore. I will accept an apology when you decide you're ready. I'm waiting. Have a nice evening.
U**R
Reasonable price!
My plants grow so good. Just add little in spring and wait for it.
B**N
Plant fertilizer
It arrived on time and is good quality!
S**Y
A reliable choice for gardeners looking to support their acid-loving plants.
GARDENWISE 8-4-8 Acidic Fertilizer is specifically formulated for acid-loving plants, such as magnolias, azaleas, camellias, rhododendrons, and gardenias. The fertilizer's balanced formula aims to provide the essential nutrients these plants need to thrive in acidic soil conditions. Key Features Nutrient Composition: 8-4-8 NPK Ratio: This indicates the fertilizer contains 8% nitrogen, 4% phosphorus, and 8% potassium. The higher nitrogen content helps promote vigorous growth and lush foliage, while phosphorus supports root development, and potassium enhances overall plant health and resilience. Acidic Soil Optimization: Designed to maintain and enhance the acidic pH levels required by acid-loving plants, ensuring optimal nutrient absorption. Slow-Release Formula: The slow-release nature of the fertilizer ensures a steady supply of nutrients over time, reducing the risk of nutrient burn and promoting sustained plant health. Ease of Use: Can be applied directly to the soil around the plants. Typically recommended to be used during the growing season for best results. Pros Promotes Healthy Growth: The balanced nutrient composition supports overall plant health, encouraging robust growth and vibrant blooms. Long-Lasting: The slow-release formula means fewer applications are needed, providing convenience for gardeners. Specific for Acid-Loving Plants: Tailored to the needs of specific plant types, ensuring they get the right nutrients in the right proportions. Cons Limited Application: Only suitable for acid-loving plants, so it might not be versatile enough for gardens with a diverse range of plant types. Potential Over-Fertilization: Care must be taken to follow application instructions to avoid over-fertilizing, which can damage plants. Conclusion The GARDENWISE 8-4-8 Acidic Fertilizer is a reliable choice for gardeners looking to support their acid-loving plants. Its balanced nutrient profile and slow-release formula make it convenient and effective, leading to healthier, more vibrant plants. While its use is somewhat limited to specific plant types, for those with magnolias, azaleas, and similar plants, it offers targeted nutrition that can significantly enhance plant health and growth.
T**E
Great healthy fertilizer
Had no idea how powerful this was. Put it on seedlings, killed them. But started to notice how quickly, the ones that did not die, were growing. love this, but don't put on seedlings.
T**Y
This fertiliser is so good never seen my hydrangeas look so healthy only problem I used the whole 5 quart packet at once I have a lot of plants so ordered another one what a pity you can’t buy this fabulous fertiliser in Australia is well worth purchasing
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