

🌿 Grow smarter, not harder — the all-in-one fertilizer pros trust!
Jack's Classic 20-20-20 All Purpose Fertilizer is an 8oz water-soluble powder designed for rapid, balanced growth in all indoor and outdoor plants. Featuring a precise NPK ratio with added micronutrients, it supports lush green-up and healthy development. Its versatile application methods and included measuring spoon make it a must-have for millennial gardeners seeking efficient, professional-grade plant care.










| Brand | Jack's Classic |
| Customer Reviews | 4.8 out of 5 stars 10,478 Reviews |
| Global Trade Identification Number | 00671341520085 |
| Item Form | Liquid |
| Item Weight | 8 Ounces |
| Liquid Volume | 0.24 Liters |
| Specific Uses For Product | Plant Growth |
S**N
Excellent liquid fertilizer product for home gardeners!
I needed a quality source of liquid fertilizer that I could mix in small quantities for my 2025 growing season of young vegetable transplants. I found the product to be simple to mix and it produced excellent results. It was recommended to me by some local greenhouse plant growers. I liked the size, nutrient balance, and value for the money to be excellent. My plants grew very healthy. I used it on flowers and vegetables.
S**H
Literally can't go wrong with Jacks
My garden has never looked so full and healthy till I found d Jack's 20-20-20. I'll never go back to miracle gro. THIS product works and with fruit, veggies and flowers. 10 stars!!!!
T**G
Peters/Jacks The Best
When I was young, my Grandfather introduced me to Peters 20-20-20. He had roses he prized. He used this on his roses, which he would give to friends and neighbors. The roses were huge, healthy and very fragrant. I have used Jacks on my fruits and vegetables, with amazing results. The plants are healthy and the fruits and vegetables beautiful. I use it in a watering can to fertilize the leaves and also to water/fertilize the base of the plant. This is the best fertilizer I have found. Grows award winning plants, and the price point is similar to other sub par fertilizers. Easy to use and mix, and it dissolves almost instantly.
M**Y
Easy To Use and Your Plants Will Love It!
My daughter got me a lovely little Norfolk Island Pine tree for Christmas and it is a cherished gift so I want to take the best care possible of my sweet little tree. The grower's tag on the tree stated to use a 20-20-20 fertilizer. I saw that this fertilizer is made by a family owned and operated company out of Allentown Pennsylvania and they have been in business since 1947. The fertilizer is recommended for use on all outdoor and indoor plants. I got the four pound container because it is more economical and it can be used on all plants, indoors and out. I mixed up a gallon of water and one tablespoon of fertilizer and began to water my little tree once a week. I am delighted with the results! My tree is so green and sturdy and I already see lots of healthy growth on all the branches. The needles are wonderfully soft and supple even in a dry house from running the furnace 24/7. I can hardly wait till spring to use it on my hanging baskets and perennials outside. I highly recommend this fertilizer to make all your plants healthy and happy and it's so easy to use.
A**.
Helpful
So far so good As of yet no burned leaves from fertilizer I gave 4 stars , it is early spring here so I cannot give reviews on blooming I do like it, it is all purpose ( all flowers ) it is concentrate and has been in business since 1947 Made in America 20-20-20 Happy gardening
T**7
Amazing stuff!
This stuff is amazing, my window boxes were barely making it, started this and they are thriving!
W**R
Great ! Makes plants healthy and beautiful
My mother’s plants always were so pretty! This is what she used!
L**T
Product review
This product seems to be working well for my plants health, the smell is not great, it's easy to use, the quality is great. It seems to be working well so far for my plants. Directions are easy to follow and does no require any additional items. I have been using Orchid Food Mist by Miracle Grow on my plans and they have done great, this just ups the growth and health of my 100+ plants.
Trustpilot
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