10-10-10 Fertilizer

10-10-10 Fertilizer: What it is and How to Use it

If you're looking for a versatile and all-inclusive fertilizer to give your lawn a healthy boost, 10-10-10 fertilizer may be just what you need. This formula is designed to deliver balanced nutrition to your lawn, with equal parts nitrogen, phosphorus, and potassium. So if you're looking to achieve that deep green hue and luscious thickness, 10-10-10 might be the right choice for you!

What is in 10-10-10?

10-10-10 is considered an all-purpose, balanced fertilizer that you can use for all kinds of plants and situations. The numbers 10-10-10 represent the amounts of Nitrogen (N), Phosphorus(P) and Potassium(K) - or as they're commonly known, NPK. That means there's about a full ten percent each for all three nutrients which are considered primary ingredients needed by plants to survive! Fertilizer grades are made by mixing two or more nutrient sources together to form a blend, that is why they are called "mixed fertilizers." Blends contain particles of more than one color.

10 10 10 fertilizer for lawns

What Are the Advantages & Disadvantages?

The convenience of the 10-10-10 is unmatched. You can just spread it around and not have to worry about what nutrients your plants need, since they'll get everything from this one bottle! It also breaks down quickly which means there's no waiting period before you use it again on new crops or areas that require planting decorations like seeds in soil for growing vegetables

The biggest advantage with these products? The easy application - all we really have do when using fertilizers nowadays are add some granules onto our hands (or sprayer) then walk away while watching over things passively go through their natural process. 

10 10 10 liquid fertilizer

Unfortunately, the disadvantage we find here at Covington, is that this fertilizer is an inorganic fertilizer. The problem with most inorganic fertilizers is that they may crust on top of the soil rather than soaking deep into the roots. Also, they don’t enrich the soil long-term, but provide a quick fix of nutrients.

When Should I Apply 10-10-10 Fertilizer to my Lawn?

It's never too early or late in the year to feed your lawn! As a general rule, warm-season grasses will need four times per annum feeding. Apply the first dose when you see new growth starting - this should be done around March/April time frame for most areas with mild winters which helps their young leaves grow healthier faster than if they were left unboosted all season long. As for cool-season grasses, you need to fertilize once in the spring when new growth begins and twice in the fall when the high summer temperatures begin to cool. Space fall applications 30 days apart. 

Before you get started on fertilizing your lawn and garden, it is advisable to start with a soil test. This will indicate what your soil is missing and what additional needs such as organic matter the soil could use to improve plant growth. 

Remember to never fertilize your lawn midday due to risk of chemical burns. Instead, you need to choose a morning (preferably before 10am) when the weather is expected to be cool and there is no rain forecasted. This will not only allow the fertilizer to soak in before it gets too hot, but will reduce the risk of being washed away. 

How to Apply 10-10-10 Fertilizer to the Lawn 

  1. Mow your lawn three days prior to spreading the fertilizer. Water the grass thoroughly to moisten the soil one to three days before applying the fertilizer. Allow the grass blades to dry completely.
  2. Position a fertilizer spreader over a sidewalk, driveway or other hard surface. Calibrate the spreader to the release rate. Measure out one-half of the needed amount of fertilizer, and pour it into the fertilizer spreader.
  3. Walk slowly back and forth across the lawn in north-south rows with the fertilizer spreader broadcasting the granules in front of you. Turn the spreader off at the end of each row as you turn around for another pass to avoid overfertilizing the lawn edges. Turn the spreader back on as you begin to walk forward down the next strip.
  4. Park the fertilizer spreader on the hard surface once more. Pour the remaining one-half portion of fertilizer into the spreader. Broadcast the additional fertilizer over the lawn in the same manner as before, this time walking back and forth in east-west rows.
  5. Attach a sprinkler head to a garden hose. Position the sprinkler in the center of the lawn so that the water spray will reach the entire surface of the turf. Water the grass to a depth of 3 inches to settle the fertilizer into the soil. 

    How to Apply 10-10-10 to the Trees 

    When it comes to fertilizing your trees, using a product like 10-10-10 fertilizer can provide them with the nutrients they need to stay healthy and grow strong. Applying this type of fertilizer is a relatively simple process. Hold tight and  I'll walk you through the steps involved! 

    1. When you start to fertilize your trees, the first thing you need to do is calculate the root zone size. Tree roots grow at least twice as far from the trunk as the branches do. Calculating the radius of the root is simple. You will need to measure the distance from the trunk to the end of the longest branch (distance of trunk) + (distance of longest branch). Be sure to measure this in feet. If you are needing to do this in square feet, you will need to multiply (root radius) x (root radius) x (3.14). 
    2. Once you have determined the root zone around your tree it is now time to determine the amount of the 10-10-10 fertilizer you need to spread around your tree. For Instance, a 20-pound bag of 10-10-10 fertilizer, enough to cover 2,000 square feet, contains 10 percent or 2 pounds each of nitrogen, phosphorus, and potassium. Multiply your tree's root zone by the application rate per square foot to find the total number of pounds to apply.
    3. Now that you have determined the root zone and the amount of 10-10-10 fertilizer that you need to apply around your tree, it’s time to apply it! Measure out the amount of fertilizer you need. Mark the outside boundary of the root zone with a garden hose or a circle of flour or lime. Also mark a circle 3 to 4 feet from the trunk. Evenly spread the fertilizer between the two circles, avoiding application close to the trunk. If the tree is in a lawn, apply when the grass is dry. Water to moisten the soil and distribute the fertilizer to a 12- to 18-inch depth. Apply in early spring or autumn when roots are actively growing.

      Can You Over Fertilize Your Lawn with 10-10-10?

      It is easy to over-use 10-10-10 fertilizer in your garden, but this can cause damage to your plants as well as the environment. If you over fertilize your garden, you will start to see plants wilting, burned areas on leaves and lawns, and a white, salt-like crust on your soil. Phosphorus and nitrogen can harm plants when used in excess. You should use caution when planning to apply a 10-10-10 NPK fertilizer to most flowering plants. Use only when a balance is required and dilute as necessary to avoid harming the plant.


      10-10-10 fertilizer is a great option for your garden, whether you’re looking to improve the quality of the soil or just give your plants a boost. It’s easy to use and can be applied in several different ways, so it’s perfect for any gardener. Just be sure to read up on the specific instructions for your chosen application method, and enjoy watching your garden thrive! Have you tried using 10-10-10 fertilizer in your garden or on your lawn? What were your results? Let us know!