JR Peters Jack's Classic Water Soluble All Purpose Fertilizer, 20-20-20, 8oz
JR Peters Jack's Classic Water Soluble All Purpose Fertilizer, 20-20-20, 8oz
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Jack's Fertilizer

JR Peters Jack's Classic Water Soluble All Purpose Fertilizer, 20-20-20, 8oz

59 ratings

Key item features

  • Professional Standard: Considered the industry standard for general-purpose fertilizers by professional growers, feeding plants through both roots and leaves.
  • Balanced Nutrition: Features a 20-20-20 formula with nitrogen, phosphorus, and potassium for fast green-up and rapid leaf expansion.
  • Versatile Application: Suitable for all indoor and outdoor plants, including bedding plants, container plants, trees, shrubs, vegetables, fruits, and turf, and useful in hydroponic setups.
  • Enhanced Micronutrients: Blended with an enhanced micronutrient package to provide optimal nutrition for strong roots and green foliage.
  • Complementary Use: Can be used in combination with Jack's Classic Blossom Booster to promote greener leaves, increased flowers, and brighter colors.
  • Clear Instructions: Includes easy-to-understand mixing instructions and feeding schedules for various plant types.
  • General Purpose: A balanced blend with fully chelated trace elements, effective as a general-purpose fertilizer on all plant materials.
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Specs

Fertilizer type, SyntheticNpk ratio, 20-20-20Form, GranulesRec. use, PlantRec location, Indoor, OutdoorSize, 8 oz

About this item

Product details

Jack's Classic line includes professional grade fertilizer for the home gardener. Feed your plants with the best quality fertilizer to allow for continued plant health over time. All-Purpose Water-Soluble Plant Food 20-20-20 is made from balanced nitrogen, phosphorus and potassium for use on all indoor and outdoor plants. Blended with an enhanced micronutrient package which provides optimal nutrition for strong roots and green foliage to feed through both the roots and the leaves. This formula can be used on all indoor and outdoor plants, trees, shrubs, vegetables, and turf. More professional growers have used this product for all their growing needs than any other formula. It is a balanced blend with fully chelated trace elements that work well on all plant materials as a general-purpose fertilizer.

  • Jack's Classic 20-20-20 All Purpose Fertilizer is considered the industry standard of general purpose fertilizers by professional growers and feeds both through the roots and the leaves. Useful for hydroponic setups.
  • Includes a formula containing nitrogen, phosphorus and potassium providing a fast green-up and rapid leaf expansion for use on all indoor and outdoor plants such as bedding plants, container plants, trees, shrubs, vegetables fruits and turf.
  • This product may be used in combination with Jack’s Classic Blossom Booster. Using the two fertilizers together will ensure growth and improvement of greener leaves, an influx of flowers and brighter colors.
  • Jack's Classic includes professional grade fertilizer that is essential in allowing you to feed your plants with the best quality fertilizer for continued plant health.
  • This formula includes easy to understand mixing instructions and feeding schedules to help you out from use on your first houseplant and to your very own backyard farm.
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Specifications

Fertilizer type

Synthetic

Npk ratio

20-20-20

Form

Granules

Rec. use

Plant

Warranty

Warranty information

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Warnings

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Customer ratings & reviews

4.8 out of 5 stars
stars
59 ratings27 reviews
Includes global ratings and reviews
How item rating is calculated
  1. 5 stars85% (50)
  2. 4 stars12% (7)
  3. 3 stars2% (1)
  4. 2 stars0% (0)
  5. 1 star2% (1)

Reviews summary

Pros

  • : Produces larger blooms.
  • : Designed for effortless operation.
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Showing 1-3 of 27 reviews

Oct 2, 2026
Reviewer name: whoozdamama
Top Reviewer
Item details
Size: 8 oz
Sold byKwik RetailDelivered byWalmart
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Great product

This is a great product and an essential in my garden.

Helpful?1YJETQ942DW0971843878
May 24, 2026
Reviewer name: Mary
Top Reviewer
Item details
Size: 8 oz
Sold and shipped byEsbenshades Garden Center
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Jacks 20 20 20 fertilizer

I follow someone on Instagram that graduated college as an horticulturist. He has the most beautiful landscapes but I was intrigued by his ferns every summer. He recommended Jacks 20 20 20. Great recommendation! My ferns are thriving.

Helpful?1YJETQ942DW0971843878
Oct 30, 2026
Reviewer name: Art
Item details
Size: 8 oz
Sold and shipped byEsbenshades Garden Center
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

My plants have been doing so good.

Helpful?1YJETQ942DW0971843878
Current price is $18.67
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  • Free Holiday returns until Jan 31

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Sold and shipped by Esbenshades Garden Center
4.677496511859677 out of 5 stars
4.7 stars out of 5, based on 5017 seller reviews(4.7)
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