

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to South Africa.
๐ฑ Feed smart, grow bold โ the proโs choice for unstoppable greenery!
Jack's Classic All Purpose 20-20-20 is a top-rated, water-soluble fertilizer powder designed for rapid green-up and leaf expansion in all indoor and outdoor plants. Featuring a balanced nitrogen-phosphorus-potassium formula plus essential micronutrients, it supports healthy growth through both foliar and root feeding. The included measuring spoon ensures precise mixing, making it a versatile, efficient solution trusted by gardeners and professionals alike.
| Asin | B001REA5NK |
| Best Sellers Rank | #1,501 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #71 in Garden Fertilizers |
| Brand Name | Jack's Classic |
| Coverage | All |
| Customer Reviews | 4.8 4.8 out of 5 stars (2,240) 4.8 out of 5 stars |
| Included Components | 1 Fertilizer Tub |
| Item Form | Powder |
| Item Weight | 1.5 Pounds |
| Liquid Volume | 1.5 Liters |
| Manufacturer | JR Peters |
| Mixing Ratio | 0.219444444444444 |
| Model Number | 52024 |
| Number Of Items | 1 |
| Part Number | 207303 |
| Specific Uses For Product | Plant Growth |
| Target Species | Plants |
| Unit Count | 24.0 Ounce |
| Upc | 671341520245 |
User
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!!
User
A good all round fertilizer
This is a good all round fertilizer that feeds just about everything in your garden from flowers and shrubs to lawns and citrus. Jack's makes specialty fertilizers if you need them so check out their website.The easiest way to use this is with a hose end sprayer and I use an Ortho dial n spray available from Amazon.The fertilizer comes in a blue powder that has to be dissolved to make a concentrate that will go through the sprayer and the recommendation is one tablespoon per gallon of water. So the sprayer needs to pull one tablespoon of the solution from the bottle for each gallon of water that comes out of the sprayer. You set the sprayer dial to one tablespoon since the sprayer will deliver water at a constant rate. To make the concentrate I use one tablespoon of powder to two tablespoons of water and usually weigh out the contents in a jug before adding it to the sprayer bottle. That would be 14grams/0.5oz of powder to 28grams/1.0oz of water. Use warm water and stir well to make sure the powder has dissolved. You can also remove the filter from the end of the sprayer pick up tube to ensure a better flow of the concentrated solution. Any less water in the mixture will probably result in a clogged pick up tube. It's best to spray either early morning or late afternoon once the heat of the sun has diminished. Spray plants at the drip line on soil that has previously just been watered to that the solution goes down into the soil to the feeder roots. And you can spray again with water after the fertilizer to wash it down further. Jacks is a root and foliar fertilizer so spray the leaves as well (but not in the heat of the day).Apply every two weeks or so to give your garden a real burst of spring energy.
User
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.
User
Great fertilizer with clear instructions
Excellent and highly concentrated. Just what I needed to fertilize my home garden! The instructions that come with it are very clear as to how much to use and the supplied measuring tool is great.
User
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.
User
Jackโs is amazing
My plants have never been healthier! Iโve recommended it highly to my friends and family. Your plants will double in growth when you start using Jack!!!!
User
It works to make your plants healthier
This was recommended by the man I buy orchid plants from. I have only used it once on my pitcher plants and they already look healthier.
User
Give Jack's All Purpose 20-20-20 A Chance And Watch Your Plants Grow Up
PROS:* This stuff is amazing! I have been using Jacks for over a year on all my indoor and outdoor plants. They all have responded positively* Safe to use on food plants* Also use in spray bottles when misting leaves* A 1.5 lb container lasts a long timeCONS:* Cannot think of any
Trustpilot
2 days ago
2 months ago