








🌱 Grow smarter, not harder — your garden’s secret weapon!
Gardenwise 13-13-13 Slow Release Granular Fertilizer delivers a balanced blend of nitrogen, phosphorus, and potassium in a slow-release formula that feeds plants for up to 8 weeks. Suitable for a wide range of outdoor plants including lawns, vegetables, flowers, shrubs, and trees, this easy-to-apply granular fertilizer promotes strong roots, lush foliage, and vibrant blooms. Available in multiple sizes, it’s the all-purpose plant food designed to keep your garden thriving with minimal effort.





| ASIN | B0CQBYLRMH |
| Best Sellers Rank | #63 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #7 in Garden Fertilizers |
| Brand Name | GARDENWISE |
| Coverage | The application rate varies by plant type but is typically 2-3 pounds per 1000 square feet for lawns, gardens, and beds. |
| Customer Reviews | 4.4 4.4 out of 5 stars (122) |
| Included Components | 1 Bag of 13-13-13 Granular Fertilizer |
| Item Form | Granules |
| Item Weight | 1 Pounds |
| Liquid Volume | 0.5 Quarts |
| Manufacturer | Summit Sales Company LLC |
| Mixing Ratio | 1:1:1 |
| Model Number | GRN-13-13-13 |
| Specific Uses For Product | All Purpose and Starter Fertilizer |
| Target Species | Indoor and Outdoor Vegetables, Fruits, Flowers, Trees, Shrubs, and Lawns |
| UPC | 371127318706 |
| Unit Count | 16.0 Ounce |
D**L
Good but be carefull.
Works good just don't put it on top or close to the plant at least small one, it Will burn your plants, mix it with the soil.
S**L
Peggy Martin Roses love 13-13-13
Peggy Martin Roses love 13-13-13 handful 1-2 times a month for healthy, big and prolific blooms - green thumb just means you learn tricks 13-13-13 for Peggy Martin
K**R
Good product 👌
Woooooorrrrrrd 😁 good product 👌
J**8
Ok
Better than poop
G**X
This appears to be fast release and not slow release.
I bought four bags of the 13 – 13–13 fertilizer because the description said it was slow release and it would feed the nutrients for 6 to 8 weeks. On the front of all four bags, it clearly says this is a fast release formula. Not sure if it is slow or fast release. Not willing to take a chance, so I am returning all four bags for a refund. I will update my review if the supplier furnishes me additional information. I have updated by rating from 1 to 5 due to the excellent customer service. The refund request was immediately approved, and I received an email from Alex Sumworth resulting in the 5 rating. He apologized and acknowledged how the description was confusing. The P and K are slow release, but the N is faster. He thanked me so they can clarify in the future. I am still returning the 13-13-13 because that is not what I need at the moment. But I will shop them for my future needs.
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.
F**G
JUST what I had been looking for
For years, I struggled to keep my geraniums healthy and blooming. I did a deep dive on what kind of fertilizer to use and ended up with this product. It's expensive compared to other products, but WOW, the results are worth it. Wish, I had thought to take before and after pictures.
S**N
Great product
Use it all the time
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