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20-20-20 All Purpose Fertilizer with Kelp and Micronutrients

20-20-20 All Purpose Fertilizer with Kelp and Micronutrients

3.7(3 ratings)

Best price now

$26.95at GS Plant FoodsChecked Nov 13

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Price facts

  • Last seen at $26.95 at GS Plant Foods on Nov 13.

Our take on the 20-20-20 All Purpose Fertilizer with Kelp and Micronutrients

A water-soluble fertilizer with an equal 20-20-20 NPK ratio, blended with kelp and micronutrients. The balanced formula suits vegetables, lawns, houseplants and shrubs, and dissolves fully for root drenching or foliar feeding. Compared with single-purpose feeds, it covers foliage, roots and blooms in one product, though it is a general feed rather than a targeted bloom or root formula.

Best forGardeners feeding a mix of vegetables, shrubs and houseplantsFoliar feeding for a fast nutrient boostReviving nutrient-deficient or stressed plantsLawn and container feeding with one product
Pros
  • Balanced 20-20-20 NPK works across plant types and growth stages
  • Fully water-soluble for root drench or foliar spray
  • Includes kelp and micronutrients beyond plain NPK
  • Fast-acting on nutrient-deficient plants
Cons
  • Balanced ratio is not tuned for bloom-heavy or root-heavy stages
  • Water-soluble powder needs careful measuring and mixing
  • Not a slow-release feed, so it needs repeat applications

20-20-20 All Purpose Fertilizer with Kelp and Micronutrients prices at every store

  • GS Plant FoodsNew

    In stockReturn policy

    $26.95Checked Nov 13
    Visit GS Plant Foods

About the 20-20-20 All Purpose Fertilizer with Kelp and Micronutrients

This is a water-soluble all-purpose fertilizer with equal parts nitrogen (20%), phosphorus (20%) and potassium (20%). It also contains organic kelp extract and chelated micronutrients. It is used on vegetables, flowers, lawns, houseplants and shrubs, indoors and outdoors.

Nitrogen, phosphorus and potassium come from fully water-soluble mineral salts: ammonium sulfate, urea, monoammonium phosphate and potassium sulfate. The formula feeds plants through the roots and leaves. Because these nutrients come from mineral salts, it is not approved for certified organic production. The kelp extract is organic.

For outdoor plants, mix 1 tablespoon per gallon of water and soak the root zones once a month. For lawns, dilute 1 ounce per gallon to cover 100 sq ft, repeating every 3 to 4 weeks depending on grass condition. For indoor plants, add ¼ teaspoon per gallon with every watering. Spring and summer are the peak growing seasons for application.

NPK ratio
20-20-20 (20% nitrogen, 20% phosphorus, 20% potassium)
Form
100% water-soluble
Nutrient sources
Ammonium sulfate, urea, monoammonium phosphate, potassium sulfate
Added ingredients
Organic kelp extract; chelated iron, zinc and manganese
Organic status
Not approved for certified organic production; kelp extract is organic
Use on
Vegetables, flowers, lawns, houseplants, shrubs
Outdoor plants
1 tablespoon per gallon of water, once a month
Lawns
1 ounce per gallon covers 100 sq ft; every 3–4 weeks
Indoor plants
¼ teaspoon per gallon with every watering
Coverage
A 3 lb bag treats up to 4,800 sq ft of lawn

Questions and answers

What does 20-20-20 mean?
It is the NPK ratio: 20% nitrogen, 20% phosphorus and 20% potassium by weight. The equal parts support foliage, roots and blooms together.
Can I use it on houseplants?
Yes. It is labeled for houseplants along with vegetables, lawns and shrubs. Mix at a dilute rate for containers and apply when the plant is actively growing.
How do I apply it?
Dissolve in water and apply as a root drench or a foliar spray. The fully soluble formula is made for both.
Does it replace a bloom booster?
No. A balanced feed covers general growth; high-phosphorus or high-potassium products are better for pushing flowers or fruit at specific stages.
What is the kelp and micronutrient blend for?
Kelp and trace minerals supplement the NPK to support overall plant health beyond the three main nutrients.
Is it safe for lawns?
It is labeled for lawns and dissolves for sprayer application. Follow the label rate to avoid overfeeding.
Where is the 20-20-20 All Purpose Fertilizer with Kelp and Micronutrients cheapest?
At GS Plant Foods, for $26.95, as of our latest check.
What do buyers say about the 20-20-20 All Purpose Fertilizer with Kelp and Micronutrients?
Rated 3.7 out of 5 from 3 ratings.

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