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🌱 Unlock your plants’ full potential with Jack’s Classic—because thriving is the new standard!
Jack's Classic 20-20-20 All Purpose Fertilizer is a professional-grade, water-soluble powder designed for rapid green-up and leaf expansion in all indoor and outdoor plants. Featuring a balanced nitrogen-phosphorus-potassium ratio and essential micronutrients, it supports robust growth through both foliar and root feeding. The included measuring spoon guarantees precise mixing, making it a versatile and efficient choice for gardeners seeking lush, healthy plants with proven results.
| ASIN | B001REA5NK |
| Best Sellers Rank | #6,342 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #185 in Garden Fertilizers |
| Brand | Jack's Classic |
| Brand Name | Jack's Classic |
| Coverage | All |
| Customer Reviews | 4.8 out of 5 stars 2,419 Reviews |
| Included Components | 1 Fertilizer Tub |
| Item Form | Powder |
| Item Highlight | Powdered, Targeted Micronutrient Package, Promotes Growth, Green-Up, and Leaf Expansion on All Indoor and Outdoor Plants |
| Item Weight | 1.5 pounds |
| Liquid Volume | 1.5 liters |
| Manufacturer | JR Peters |
| Mixing Ratio | 0.22 |
| Model Number | 52024 |
| Number of Items | 1 |
| Part Number | 207303 |
| Specific Uses For Product | Plant Growth |
| Target Species | Plants |
| UPC | 671341520245 |
| Unit Count | 24 Ounce |
T**S
Beyond impressed at what this does for my petunias
First time using this brand and I just have to say WOW. My container petunias that I just planted a few weeks ago are absolutely thriving, tons of lush growth and flowers with an insane number of flower buds popping up on the stems practically daily. I'm really impressed so far and can't wait to see how they finish out the year. I would have bought fewer plant starts if I knew I'd be getting such excellent growth! I'm going to have to thin out my containers and I'm not even a month into the season. It dissolves immediately in my pump-action sprayer and mixes well in the can-type waterers as well. I'm using this along with a yucca solution to maximize nutrition and proper moisture for petunias in coconut fiber hanging baskets, my Wave petunias puffed up 2x as thick with leaves in just a week! I'll take some before pics and share with after pics once the season is over. If you're thinking about this fertilizer...DO IT!!
J**S
Item does its job
Never fails to grow my plants without burning or dropping leaves.
N**R
Good fertilizer
So far it’s working good! My Hibiscus is blooming like crazy!
J**.
Easy to use. More economical than most liquid fertilizers. Doesn't seem to cause chemical buildup.
I grow most of our veggies and herbs in our large basement, and have been growing them under LED lighting for over 6 years. I had been using a liquid fertilizer that was much more costly and more difficult, and messy, to use. I use this formula primarily for the veggie greens and herbs. It also works well for cucumbers and beans. The liquid fertilizer I used was in gallon plastic bottles that needed to be shaken before each use because some of the components settled to the bottom. For these, I had to shake the gallon bottle before pouring into a small plastic cup. I used 10 cc's per gallon of water and had to mix the contents of the cup each time I took 10 cc's from it to add to the watering can. For the plants that I have, I used two different formulas, and used 1 gallon of each per month. The cost of these fertilizers was $56-$70 per gallon. Since I started using this fertilizer, I still use 2 formulas, and use two of the 1.5 lbs. containers of each per month for the same plants. Although 2 of these was costing $32, I found a 4 lb. container on Amazon for $25. This reduced the cost to less than half. So, if you are using this fertilizer, you need to shop to get the best price. Using this fertilizer is so much easier than using the liquid fertilizer. I use 1 tsp. per gallon, and it dissolves instantly - no shaking or mixing, just put it in the watering can and add water. Since using this fertilizer, my plants seem happier, and I am not seeing the mineral buildup on the pots that I was seeing when using the liquid fertilizers. I hope this review was helpful for you.
J**U
Excellent Plant Food
I have excellent results with Jack’s on all my house plants. I also use the formula for flowering plants that is good. This is my second order.
3**N
It works very well.
The container is rather small. The photos make it look like you're going to get a bucket of fertilizer. But it's actually about the size of 1 quart. Maybe less. But it's sold by the pound, not by the size of the container.... It seems to work very well. I had some azaleas that had yellow leaves. About 2 weeks after I applied this product, the leaves turned a dark green. It's not inexpensive, but it seems to work as advertised. I wish it was sold in 10 pound tubs or bags. Or maybe 8 pound tubs. Their current packaging in either too little or too much for the average homeowner.
A**R
If you want healthy, beautiful flowers and plants, this is for you!
This is the BEST fertilizer for your flowers. My friend recommended it to me a couple of years ago, and I've used only this ever since.
S**0
Very Best
Jack’s is my favorite fertilizer. My flowers bloom better and are healthier than any other plant fertilizer I have used. I highly recommend!
Trustpilot
1 month ago
2 weeks ago