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Jack's Classic All Purpose Fertilizer, 20-20-20 with Micronutrients and Plant Food, 1.5lbs

4.7 4.7 out of 5 stars 5,299 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Garden Fertilizers by Jack's Classic

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1.5lbs

Purchase options and add-ons

Brand Jack's Classic
Item Weight 1.5 Pounds
Item Form Powder
Coverage Full
Liquid Volume 1.5 Liters

About this item

  • All indoor and outdoor plants, tree, vegetables and surf
  • It feeds both through the roots and the leaves. This formula of nitrogen, phosphorus and potassium provides fast green-up and rapid leaf expansion
  • Indoors it is especially effective on foliage plants, keeping leaves green. A proven performer in the vegetable garden for generations

Customer ratings by feature

Easy to use
4.8 4.8
Scent
4.7 4.7
Value for money
4.7 4.7

Frequently bought together

$21.99 ($0.92/Ounce)
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$18.95 ($0.86/Ounce)
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Ships from and sold by Amazon.com.
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$16.44 ($0.69/Ounce)
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Sold by Hearthshire and ships from Amazon Fulfillment.
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Jack's Classic All Purpose Fertilizer, 20-20-20 with Micronutrients and Plant Food, 1.5lbs
Jack's Classic All Purpose Fertilizer, 20-20-20 with Micronutrients and Plant Food, 1.5lbs
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Price-7% $21.99
List:$23.54
$25.95$33.95$19.85$18.95
Delivery
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Get it as soon as Tuesday, Mar 26
Customer Ratings
Easy to use
4.8
4.7
4.8
4.8
4.8
Value for money
4.7
4.7
4.8
4.7
4.6
Scent
4.7
4.2
4.5
4.1
Flavor
3.8
4.1
5.0
Sold By
Harwell's Green Thumb
GS Plant Foods
Buckeye Trading
Buckeye Trading
Amazon.com
weight
1.5 pounds
4 pounds
1.5 pounds
1.5 pounds
form
Powder
dry
Powder
Powder
coverage
Full
100 square feet
Full
Medium
liquid volume
1.5 liters
20 liters
1.5 liters
1.5 liters
specific uses
Plant Food
Plant Food
Lawn

From the manufacturer

img

About Us

Started in 1947 by Bob Peters, his Horticultural soil for greenhouse growers and made recommendations on how to produce the best crops. Today, under the leadership of Bob's son, Jack Peters, JR Peters, is advancing the tradition of Peter’s family quality products. For over 65 years, the Peters' family has designed and produced "The Fine in Soluble Fertilizers". Today, as president of JR Peters, Jack Peters advances our family's tradition of delivering only the good quality products.

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Product Description

Technical Details: Total Nitrogen 20% 2.1% Nitrate Nitrogen 17.9% Urea Nitrogen Available Phosphate 20% Soluble Po tash 20% Boron 0.02% Copper 0.05% Chelated Copper Iron 0.10% Chelated Iron Manganese ese 0.05% Chelated Manganese Molybdenum 0.0009% Zinc 0.05% Chelated Zinc Product Description: Professional fertilizers made from the finest raw materials. - Dissolves faster and cakes less than other top brands. Chelated formulas for improved performance. Includes a blue color tracer. 17-6-6 General Purpose - For maintaining plants. Fast green-up and expansion. Formulated for root and shoot growth.

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 1 x 1 x 1 inches; 1.5 Pounds
  • Item model number ‏ : ‎ 52024
  • Date First Available ‏ : ‎ January 12, 2009
  • Manufacturer ‏ : ‎ JR Peters
  • ASIN ‏ : ‎ B00BIO560G
  • Country of Origin ‏ : ‎ USA
  • Customer Reviews:
    4.7 4.7 out of 5 stars 5,299 ratings
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Product Safety and Compliance Details

LEGAL DISCLAIMER

Phosphorus runoff poses a threat to water quality. Some states restrict the application of phosphorus-containing fertilizer on non-agricultural lawn or turf. Check your local laws prior to purchase.

Important information

Ingredients

total

Customer reviews

4.7 out of 5 stars
4.7 out of 5
5,299 global ratings

Customers say

Customers like the quality, ease of use, size and value of the outdoor living product. They mention that it works wonders in their garden, it's economical and worth its weight in gold. Customers are also satisfied with growth. However, some customers have different opinions on amount.

AI-generated from the text of customer reviews

216 customers mention215 positive1 negative

Customers are satisfied with the quality of the fertilizer. They mention that it is very effective, excellent, and amazing. Some say that it works wonders in their garden and is a great all-around fertilizer that completely buys them back to life.

"...It’s incredible. I don’t have a plant that hasn’t responded well or at all to this fertilizer...." Read more

"...It also is great in rejuvenating distressed plants and shrubs and is safe to use on seedlings. It is honestly magical blue water...." Read more

"...People thought they were fake because they were so big and perfect." Read more

"Always works great for me!" Read more

114 customers mention114 positive0 negative

Customers are satisfied with the growth of their plants after using the product. They mention that their trees are thriving and blooming well, and their flowers clearly experienced a revival. They also say that their houseplants are growing like crazy, and they have lush, healthy growth. Customers also mention that the product jump-starts their flowers like a rocket, and that their plants are booming after just 2 weeks of using it.

"...for some outdoor hanging baskets and they got huge and bloomed constantly all summer! I have NEVER had my plants grow like this!!" Read more

"...But when I introduced them to this stuff, OMG, they skyrocketed. Fast...." Read more

"...Since using this fertilizer, my plants seem happier, and I am not seeing the mineral buildup on the pots that I was seeing before,..." Read more

"...It’s also incredible on vegetables and makes tomato plants stand ridged when first starting to grow...." Read more

42 customers mention40 positive2 negative

Customers find the product easy to use. They say the directions are straight forward and easy to understand. Customers also mention that the product is convenient to have and that it uses just 1 table spoon per gallon of water.

"...Using this fertilizer is so much easier than using the liquid fertilizer. I use 1 tsp...." Read more

"...This fits the bill. Easy to use." Read more

"...It's super easy to use and very affordable. I'm already half-way through a 10-lb. bag and it's not even Memorial Day...." Read more

"...It’s really convenient to have." Read more

23 customers mention18 positive5 negative

Customers like the value of the outdoor living product. They mention that it is a superb product worth its weight in gold.

"...It's super easy to use and very affordable. I'm already half-way through a 10-lb. bag and it's not even Memorial Day...." Read more

"...Jack's 20-20 is a superb product worth its weight in gold." Read more

"So far only great things to say about this product! Great value for the price, and a good balanced fertilizer!..." Read more

"This fertilizer truly helps plants produce more greenery. It's a bit pricey, so I am careful about using it...." Read more

15 customers mention15 positive0 negative

Customers are satisfied with the size of the fertilizer. They mention that it makes their fruits and vegetables grow big and full. Some say that the large container is good for indoor use. Overall, customers are happy with the product's size and performance.

"I used this for some outdoor hanging baskets and they got huge and bloomed constantly all summer! I have NEVER had my plants grow like this!!" Read more

"...They are gorgeous, thick, full, and vibrant. Flowers that normally have called it quits by now (lobelia and viola) look fantastic...." Read more

"Makes my fuchsias grow big and bloom profusely. Finally found the right formula. This is basically a general purpose water soluble fertilizer...." Read more

"My flowers boxes were Amazing last year. They were huge, colorful and so heathy! I’m never using another fertilizer again...." Read more

8 customers mention8 positive0 negative

Customers like the ease of dissolving the product. They say it dissolves quite easily and instantly in water.

"...I use 1 tsp. per gallon, and it dissolves instantly - no shaking or mixing, just put it in the watering can and add water...." Read more

"...Easy to measure. Dissolves quickly and thoroughly. Highly recommended." Read more

"...Product dissolves instantly in water. No stir no gently shaken needed though advised always shake to ensure compete mix." Read more

"So far working well. Easy to use. Dissolves quickly and easily. Time will tell." Read more

8 customers mention8 positive0 negative

Customers are satisfied with the health benefits of the product. They mention it keeps their plants healthy, balanced, and helps turn around their plants' lives. Some say that it does wonders for their peace lilies and makes a huge difference in improving the flowers in hanging plants.

"Works wonderful, makes a difference." Read more

"I have been using this for 3 summers. It has made a HUGE difference in improving the flowers in my hanging plants of which I have many...." Read more

"Very easy to use, vegetables love it! It’s good and healthy for the plants! Recommend it 100%!" Read more

"...are big and beautiful and all my fruits and veggies are huge and healthy." Read more

9 customers mention5 positive4 negative

Customers are mixed about the amount of the outdoor living product. Some mention that it has the right amount of ingredients needed for plants to grow, while others say that it consists of 100% nitrogen and nothing else.

"This is my go to water soluble fertilizers. They make a whole group of specialty products as well, all excellent." Read more

"...Not organic, but works well on blooming plants that don't require a high soil PH...." Read more

"...These products have the right amount of ingredients needed for my plants to grow...." Read more

"...It's like it consists of 100% nitrogen & nothing else. Very disappointed. I would have been better off spending half the price on Super Bloom." Read more

Easy to use. More economical than most liquid fertilizers. Doesn't seem to cause chemical buildup.
5 Stars
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 to use. I use this formula primarily for the veggie greens and herbs.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 $64, 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 before,I hope this review was helpful for you.
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Top reviews from the United States

Reviewed in the United States on February 25, 2024
Size: 1.5lbsVerified Purchase
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Reviewed in the United States on December 25, 2023
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Reviewed in the United States on November 4, 2023
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5.0 out of 5 stars Easy to use. More economical than most liquid fertilizers. Doesn't seem to cause chemical buildup.
Reviewed in the United States on November 4, 2023
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 to use. I use this formula primarily for the veggie greens and herbs.

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 $64, 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 before,

I hope this review was helpful for you.
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3 people found this helpful
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Reviewed in the United States on June 11, 2023
Size: 1.5lbsVerified Purchase
Reviewed in the United States on December 28, 2023
Size: 1.5lbsVerified Purchase
Reviewed in the United States on June 6, 2023
Size: 1.5lbsVerified Purchase
2 people found this helpful
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Reviewed in the United States on February 20, 2024
Size: 1.5lbsVerified Purchase

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Diane
5.0 out of 5 stars parfait pour moi
Reviewed in Canada on March 7, 2024
Size: 1.5lbsVerified Purchase
Johnny Apple seed
5.0 out of 5 stars Would buy again and recommend
Reviewed in Canada on December 5, 2023
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Joyce
5.0 out of 5 stars Easy peasy
Reviewed in Canada on June 22, 2023
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One person found this helpful
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Sylvie Boutin
4.0 out of 5 stars Très bien 👍
Reviewed in Canada on November 19, 2022
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Frank
5.0 out of 5 stars All around fertilizer
Reviewed in Canada on July 20, 2023
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